AT89S8253 Atmel Corporation, AT89S8253 Datasheet - Page 52

• Manufacturer Part Number: AT89S8253
• Manufacturer: Atmel Corporation

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

41. I
42. I
43. Clock Signal Waveform for I
44. I
52
t
V
CC
CC
CC
CLCH
CC
AT89S8253
Test Condition, Active Mode, All Other Pins are Disconnected
Test Condition, Idle Mode, All Other Pins are Disconnected
Test Condition, Power-down Mode, All Other Pins are Disconnected,
= 2V to 5.5V
= t
CHCL
0.45V
= 5 ns
V
CC
- 0.5V
0.2 V
0.7 V
CLOCK SIGNAL
CLOCK SIGNAL
CC
t
CHCL
- 0.1V
(NC)
CC
CC
(NC)
(NC)
Tests in Active and Idle Modes,
RST
XTAL2
XTAL1
VSS
RST
XTAL2
XTAL1
V
RST
XTAL2
XTAL1
V
SS
SS
t
CHCX
V
EA
CC
P0
V
V
EA
EA
CC
CC
P0
P0
I
CC
V
V
t
CC
CC
CLCL
I
I
CC
CC
V
V
V
V
CC
CC
CC
CC
t
CLCH
t
CHCX