DS2251T-32-16 Maxim Integrated Products, DS2251T-32-16 Datasheet - Page 22

• Manufacturer Part Number: DS2251T-32-16
• Description: IC MICROCNTRLR 32K 16MHZ 72-SIMM
• Manufacturer: Maxim Integrated Products
• Series: DS225xr

Specifications of DS2251T-32-16

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: SIO, UART/USART
• Peripherals: Power-Fail Reset, WDT
• Number Of I /o: 32
• Program Memory Type: SRAM
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 72-SIMM
• Processor Series: DS2251T
• Core: 8051
• Data Bus Width: 8 bit
• Program Memory Size: 32 KB
• Data Ram Size: 32 KB
• Interface Type: UART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 2
• Operating Supply Voltage: 4.75 V to 5.25 V
• Maximum Operating Temperature: + 70 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: 0 C
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Program Memory Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: No

DATA SHEET REVISION SUMMARY
The following represent the key differences between 12/13/95 and 08/13/96 version of the DS2251T data
sheet. Please review this summary carefully.
The following represent the key differences between 08/15/96 and 05/29/97 version of the DS2251T data
sheet. Please review this summary carefully.
The following represent the key differences between 05/28/97 and 11/08/99 version of the DS2251T data
sheet. Please review this summary carefully. (PCN I80903)
The following represent the key differences between 11/08/99 and 01/18/00 version of the DS2251T data
sheet. Please review this summary carefully.
The following represent the key differences between 01/18/00 and 06/13/06 version of the DS2251T data
sheet. Please review this summary carefully.
Maxim/Dallas Semiconductor cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim/Dallas Semiconductor product.
No circuit patent licenses are implied. Maxim/Dallas Semiconductor reserves the right to change the circuitry and specifications without notice at any time.
M a x i m I n t e g r a t e d P r o d u c t s , 1 2 0 S a n G a b r i e l D r i v e , S u n n y v a l e , C A 9 4 0 8 6 4 0 8 - 7 3 7 - 7 6 0 0
The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor Corporation.
1. Change V
2. Add minimum value to PCB thickness.
1.
1. Correct Absolute Maximum Ratings to reflect changes to DS5001FP microprocessor.
2. Add note clarifying that SRAM contents are not defined under storage temperature conditions.
1. Document converted from interleaf to Microsoft Word.
1. Updated reference in Features (High-Reliability Operation) to 10-year NV RAM data life to
2. Added RoHS-compliant packages to Ordering Information table.
3. Replaced references to “Secure Microcontroller Data Book” with “Secure Microcontroller User’s
include room temperature caveat.
Guide.”
PF
signal moved from V
CC
slew rate definition to reference 3.3V instead of V
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© 2006 Maxim Integrated Products • Printed USA
test specification to V
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DS2251T