AT89S8253 Atmel Corporation, AT89S8253 Datasheet - Page 51

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AT89S8253

Manufacturer Part Number
AT89S8253
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of AT89S8253

Flash (kbytes)
12 Kbytes
Max. Operating Frequency
24 MHz
Cpu
8051-12C
Max I/o Pins
32
Spi
1
Uart
1
Sram (kbytes)
0.25
Eeprom (bytes)
2048
Operating Voltage (vcc)
2.7 to 5.5
Timers
3
Isp
SPI
Watchdog
Yes

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AT89S8253
37. Serial Port Timing: Shift Register Mode Test Conditions
Variable Oscillator
Symbol
Parameter
Min
Max
Units
38. Shift Register Mode Timing Waveforms
(1)
39. AC Testing Input/Output Waveforms
Note:
1. AC Inputs during testing are driven at V
- 0.5V for a logic 1 and 0.45V for a logic 0. Timing measurements are made at V
CC
IH
min. for a logic 1 and V
max. for a logic 0.
IL
(1)
40. Float Waveforms
51
3286P–MICRO–3/10

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