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DS5000T-32-16+

hotDS5000T-32-16+

DS5000T-32-16+

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Part Number DS5000T-32-16+
Manufacturer Maxim Integrated
Description IC MCU 8BIT 32KB NVSRAM 40EDIP
Datasheet DS5000T-32-16+ Datasheet
Package 40-DIP Module (0.610", 15.495mm)
In Stock 294 piece(s)
Unit Price Request a Quote
Lead Time Can Ship Immediately
Estimated Delivery Time Dec 2 - Dec 7 (Choose Expedited Shipping)
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Part Number # DS5000T-32-16+ (Embedded - Microcontrollers) is manufactured by Maxim Integrated and distributed by Heisener. Being one of the leading electronics distributors, we carry many kinds of electronic components from some of the world’s top class manufacturers. Their quality is guaranteed by its stringent quality control to meet all required standards.

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DS5000T-32-16+ Specifications

ManufacturerMaxim Integrated
CategoryIntegrated Circuits (ICs) - Embedded - Microcontrollers
Datasheet DS5000T-32-16+Datasheet
Package40-DIP Module (0.610", 15.495mm)
SeriesDS500x
Core Processor8051
Core Size8-Bit
Speed16MHz
ConnectivitySIO, UART/USART
PeripheralsPower-Fail Reset, WDT
Number of I/O32
Program Memory Size32KB (32K x 8)
Program Memory TypeNVSRAM
EEPROM Size-
RAM Size-
Voltage - Supply (Vcc/Vdd)4.75 V ~ 5.25 V
Data Converters-
Oscillator TypeExternal
Operating Temperature0°C ~ 70°C (TA)
Mounting Type-
Package / Case40-DIP Module (0.610", 15.495mm)
Supplier Device Package40-EDIP

DS5000T-32-16+ Datasheet

Page 1

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1 of 19 REV: 070706 Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata. FEATURES 8-Bit 8051-Compatible Microcontroller Adapts to Task at Hand 8 or 32 kbytes of Nonvolatile RAM for Program and/or Data Memory Storage Initial Downloading of Software in End System via On-Chip Serial Port Capable of Modifying Its Own Program and/or Data Memory in End Use Crashproof Operation Maintains All Nonvolatile Resources for 10 Years in the Absence of VCC at Room Temperature Power-Fail Reset Early Warning Power-Fail Interrupt Watchdog Timer Software Security Feature Executes Encrypted Software to Prevent Unauthorized Disclosure On-Chip, Full-Duplex Serial I/O Ports Two On-Chip Timer/Event Counters 32 Parallel I/O Lines Compatible with Industry Standard 8051 Instruction Set and Pinout Optional Permanently Powered Real-Time Clock (DS5000T) PIN ASSIGNMENT DESCRIPTION The DS5000(T) Soft Microcontroller Module is a fully 8051-compatible 8-bit CMOS microcontroller that offers “softness” in all aspects of its application. This is accomplished through the comprehensive use of nonvolatile technology to preserve all information in the absence of system VCC. The internal program/data memory space is implemented using either 8 or 32 kbytes of nonvolatile CMOS SRAM. Furthermore, internal data registers and key configuration registers are also nonvolatile. An optional real- time clock (RTC) gives permanently powered timekeeping. The clock keeps time to a hundredth of a second using an on-board crystal. Note: This data sheet provides ordering information, pinout, and electrical specifications. Refer to the Secure Microcontroller User’s Guide for operating information. DS5000(T) Soft Microcontroller Module www.maxim-ic.com 1P1.0 2P1.1 3P1.2 4P1.3 5P1.4 6P1.5 7P1.6 8P1.7 9RST 10RXD P3.0 11TXD P3.1 12INT0 P3.2 13INT1 P3.3 14T0 P3.4 15T1 P3.5 16WR P3.6 17RD P3.7 18XTAL2 19XTAL1 20GND VCC40 P0.0 AD039 P0.1 AD138 P0.2 AD237 P0.3 AD336 P0.4 AD435 P0.5 AD534 P0.6 AD633 P0.7 AD732 EA31 ALE30 PSEN29 P2.7 A1528 P2.6 A1427 P2.5 A1326 P2.4 A1225 P2.3 A1124 P2.2 A1023 P2.1 A922 P2.0 A821 40-Pin Encapsulated Package DS5000(T)

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DS5000(T) 2 of 19 ORDERING INFORMATION PART RAM SIZE (kB) MAX CRYSTAL SPEED (MHz) TIMEKEEPING? DS5000-32-16 32 16 No DS5000-32-16+ 32 16 No DS5000T-32-16 32 16 Yes DS5000T-32-16+ 32 16 Yes + Denotes a lead-free package. DS5000(T) BLOCK DIAGRAM Figure 1

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DS5000(T) 3 of 19 PIN DESCRIPTION PIN NAME FUNCTION 1–8 P1.0–P1.7 General-Purpose I/O Port 1 9 RST Active-High Reset Input. A logic 1 applied to this pin will activate a reset state. This pin is pulled down internally so this pin can be left unconnected if not used. 10 P3.0/RXD General-Purpose I/O Port Pin 3.0/Receive Signal for On-Board UART. This pin should not be connected directly to a PC COM port. 11 P3.1/TXD General-Purpose I/O Port Pin 3.1/Transmit Signal for On-Board UART. This pin should not be connected directly to a PC COM port. 12 P3.2/INT0 General-Purpose I/O Port Pin 3.2/Active-Low External Interrupt 0 13 P3.3/INT1 General-Purpose I/O Port Pin 3.3/Active-Low External Interrupt 1 14 P3.4/T0 General-Purpose I/O Port Pin 3.4/Timer 0 Input 15 P3.5/T1 General-Purpose I/O Port Pin 3.5/Timer 1 Input 16 P3.6/WR General-Purpose I/O Port Pin 3.6/Active-Low Write Strobe for Expanded Bus Operation 17 P3.7/RD General-Purpose I/O Port Pin 3.7/Active-Low Read Strobe for Expanded Bus Operation 18, 19 XTAL2, XTAL1 Crystal Connection. Used to connect an external crystal to the internal oscillator. XTAL1 is the input to an inverting amplifier and XTAL2 is the output. 20 GND Logic Ground 21–28 P2.0–P2.7/ A8–A15 General-Purpose I/O Port 2/MSB of the Expanded Address Bus 29 PSEN Active-Low Program Store Enable. Used to enable an external program memory when using the expanded bus. It is normally an output and should be unconnected if not used. PSEN also is used to invoke the bootstrap loader. At this time, PSEN is pulled down externally. This should only be done once the DS5000(T) is already in a reset state. The device that pulls down should be open drain since it must not interfere with PSEN under normal operation. 30 ALE Address Latch Enable. Used to demultiplex the multiplexed expanded address/data bus on Port 0. This pin is normally connected to the clock input on a ’373 type transparent latch. When using a parallel programmer, this pin also assumes the PROG function for programming pulses. 31 EA Active-Low External Access. This pin forces the DS5000(T) to behave like an 8031. No internal memory (or clock) is available when this pin is at a logic low. Since this pin is pulled down internally, it should be connected to +5V to use NV RAM. In a parallel programmer, this pin also serves as VPP for super voltage pulses. 32-39 P0.7–P0.0/ AD7–AD0 General-Purpose I/O Port 0/Multiplexed Expanded Address/Data Bus. This port is open drain and cannot drive a logic 1. It requires external pullups. When used in the multiplexed expanded address data/bus mode, this pin does not require pullups. 40 VCC +5V Power Supply

Page 5

DS5000(T) 4 of 19 INSTRUCTION SET The DS5000(T) executes an instruction set which is object code-compatible with the industry standard 8051 microcontroller. As a result, software development packages that have been written for the 8051, including cross-assemblers, high-level language compilers, and debugging tools, are compatible with the DS5000(T). A complete description for the DS5000(T) instruction set is available in Secure Microcontroller User’s Guide. MEMORY ORGANIZATION Figure 2 illustrates the address spaces, which are accessed by the DS5000(T). As illustrated in the figure, separate address spaces exist for program and data memory. Since the basic addressing capability of the machine is 16 bits, a maximum of 64 kbytes of program memory and 64 kbytes of data memory can be accessed by the DS5000(T) CPU. The 8- or 32-kbyte RAM area inside of the DS5000(T) can be used to contain both program and data memory. The real-time clock (RTC) in the DS5000T is reached in the memory map by setting a SFR bit. The MCON.2 bit (ECE2) is used to select an alternate data memory map. While ECE2 = 1, all MOVXs will be routed to this alternate memory map. The RTC is a serial device that resides in this area. A full description of the RTC access and example software is given in the Secure Microcontroller User’s Guide. If the ECE2 bit is set on a DS5000 without a timekeeper, the MOVXs will simply go to a nonexistent memory. Software execution would not be affected otherwise.

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DS5000(T) 5 of 19 DS5000(T) LOGICAL ADDRESS SPACES Figure 2 PROGRAM LOADING The Program Load Modes allow initialization of the NV RAM Program/Data Memory. This initialization may be performed in one of two ways: 1. Serial Program Loading that can perform Bootstrap Loading of the DS5000(T). This feature allows the loading of the application program to be delayed until the DS5000(T) is installed in the end system. Dallas Semiconductor strongly recommends the use of serial program loading because of its versatility and ease of use. 2. Parallel Program Load cycles that perform the initial loading from parallel address/data information presented on the I/O port pins. This mode is timing-set compatible with the 8751H microcontroller programming mode. The DS5000(T) is placed in its Program Load configuration by simultaneously applying a logic 1 to the RST pin and forcing the PSEN line to a logic 0 level. Immediately following this action, the DS5000(T) will look for a parallel Program Load pulse, or a serial ASCII carriage return (0DH) character received at 9600, 2400, 1200, or 300 bps over the serial port. The hardware configurations used to select these modes of operation are illustrated in Figure 3.

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DS5000(T) 6 of 19 PROGRAM LOADING CONFIGURATIONS Figure 3 Table 1 summarizes the selection of the available Parallel Program Load cycles. The timing associated with these cycles is illustrated in the electrical specs. SERIAL BOOTSTRAP LOADER The Serial Program Load Mode is the easiest, fastest, most reliable, and most complete method of initially loading application software into the DS5000(T) nonvolatile RAM. Communication can be performed over a standard asynchronous serial communications port. A typical application would use a simple RS232C serial interface to program the DS5000(T) as a final production procedure. The hardware configuration required for the Serial Program Load mode is illustrated in Figure 3. Port pins 2.7 and 2.6 must be either open or pulled high to avoid placing the DS5000(T) in a parallel load cycle. Although an 11.0592 MHz crystal is shown in Figure 3, a variety of crystal frequencies and loader baud rates are supported, shown in Table 2. The serial loader is designed to operate across a 3-wire interface from a standard UART. The receive, transmit, and ground wires are all that are necessary to establish communication with the DS5000(T). The Serial Bootstrap Loader implements an easy-to-use command line interface that allows an application program in an Intel hex representation to be loaded into and read back from the device. Intel hex is the typical format which existing 8051 cross-assemblers output. The serial loader responds to single character commands, which are summarized below:

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DS5000(T) 7 of 19 COMMAND FUNCTION C Return CRC-16 checksum of embedded RAM D Dump Intel hex file F Fill embedded RAM block with constant K Load 40-bit encryption key L Load Intel hex file R Read MCON register T Trace (echo) incoming Intel hex data U Clear security lock V Verify embedded RAM with incoming Intel hex W Write MCON register Z Set security lock P Put a value to a port G Get a value from a port PARALLEL PROGRAM LOAD CYCLES Table 1 MODE RST PSEN PROG EA P2.7 P2.6 P2.5 Program 1 0 0 VPP 1 0 X Security Set 1 0 0 VPP 1 1 X Verify 1 X X 1 0 0 X Prog Expanded 1 0 0 VPP 0 1 0 Verify Expanded 1 0 1 1 0 1 0 Prog MCON or Key registers 1 0 0 VPP 0 1 1 Verify MCON registers 1 0 1 1 0 1 1 The Parallel Program Cycle is used to load a byte of data into a register or memory location within the DS5000(T). The Verify Cycle is used to read this byte back for comparison with the originally loaded value to verify proper loading. The Security Set Cycle may be used to enable and the Software Security feature of the DS5000(T). One may also enter bytes for the MCON register or for the five encryption registers using the Program MCON cycle. When using this cycle, the absolute register address must be presented at Ports 1 and 2 as in the normal program cycle (Port 2 should be 00H). The MCON contents can likewise be verified using the Verify MCON cycle. When the DS5000(T) first detects a Parallel Program Strobe pulse or a Security Set Strobe pulse while in the Program Load Mode following a Power-On Reset, the internal hardware of the DS5000(T) is initialized so that an existing 4-kbyte program can be programmed into a DS5000(T) with little or no modification. This initialization automatically sets the Range Address for 8 kbytes and maps the lowest 4- kbyte bank of Embedded RAM as program memory. The next 4 kbytes of Embedded RAM are mapped as Data Memory. In order to program more than 4 kbytes of program code, the Program/Verify Expanded cycles can be used. Up to 32 kbytes of program code can be entered and verified. Note that the expanded 32-kbyte Program/ Verify cycles take much longer than the normal 4-kbyte Program/Verify cycles.

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DS5000(T) 8 of 19 A typical parallel loading session would follow this procedure. First, set the contents of the MCON register with the correct range and partition only if using expanded programming cycles. Next, the encryption registers can be loaded to enable encryption of the program/data memory (not required). Then, program the DS5000(T) using either normal or expanded program cycles and check the memory contents using Verify cycles. The last operation would be to turn on the security lock feature by either a Security Set cycle or by explicitly writing to the MCON register and setting MCON.0 to a 1. SERIAL LOADER BAUD RATES FOR DIFFERENT CRYSTAL FREQUENCIES Table 2 BAUD RATE CRYSTAL FREQ (MHz) 300 1200 2400 9600 19200 57600 14.7456 Y Y Y Y 11.0592 Y Y Y Y Y Y 9.21600 Y Y Y Y 7.37280 Y Y Y Y 5.52960 Y Y Y Y 1.84320 Y Y Y Y ADDITIONAL INFORMATION Refer to the Secure Microcontroller User’s Guide for a complete description for all operational aspects of the DS5000(T). DEVELOPMENT SUPPORT The DS89C450-K00 evaluation kit (www.maxim-ic.com/DS89C450evkit) can be used to develop and test user code. It allows the user to download Intel hex-formatted code to the DS5000(T) from a PC. Refer to the Secure Microcontroller User’s Guide for more information.

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DS5000(T) 9 of 19 ABSOLUTE MAXIMUM RATINGS Voltage on Any Pin Relative to Ground…………………………………………………….-0.3V to +7.0V Operating Temperature…………………………………………………………………….….0°C to +70°C Storage Temperature………………………………………………………………………...-40°C to +70°C Soldering Temperature.…………………………………………See IPC/JEDEC J-STD-020 Specification This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operation sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect device reliability. DC CHARACTERISTICS (tA=0°C to 70°C; VCC=5V ± 5%) PARAMETER SYMBOL MIN TYP MAX UNITS NOTES Input Low Voltage VIL -0.3 0.8 V 1 Input High Voltage VIH1 2.0 VCC+0.3 V 1 Input High Voltage RST, XTAL1 VIH2 3.5 VCC+0.3 V 1 Output Low Voltage @ IOL=1.6 mA (Ports 1, 2, 3) VOL1 0.15 0.45 V Output Low Voltage @ IOL=3.2 mA (Ports 0, ALE, PSEN ) VOL2 0.15 0.45 V 1 Output High Voltage @ IOH=-80 µA (Ports 1, 2, 3) VOH1 2.4 4.8 V 1 Output High Voltage @ IOH=-400 µA (Ports 0, ALE, PSEN ) VOH2 2.4 4.8 V 1 Input Low Current VIN = 0.45V (Ports 1, 2, 3) IIL -50 µA Transition Current; 1 to 0 VIN=2.0V (Ports 1, 2, 3) ITL -500 µA Input Leakage Current 0.45 < VIN < VCC (Port 0) IL ±10 µA RST, EA Pulldown Resistor RRE 40 125 kΩ Stop Mode Current ISM 80 µA 4 Power-Fail Warning Voltage VPFW 4.15 4.6 4.75 V 1 Minimum Operating Voltage VCCmin 4.05 4.5 4.65 V 1 Programming Supply Voltage (Parallel Program Mode) VPP 12.5 13 V 1 Program Supply Current IPP 15 20 mA Operating Current DS5000-8k @ 8MHz DS5000-32k @ 12 MHz DS5000(T)-32-16 @ 16 MHz ICC 25.2 35.7 45.6 43 48 54 mA 2 Idle Mode Current @ 12 MHz ICC 4.5 6.2 mA 3

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