AT89LP428 Atmel Corporation, AT89LP428 Datasheet - Page 137

• Manufacturer Part Number: AT89LP428
• Manufacturer: Atmel Corporation

Specifications of AT89LP428

• Flash (kbytes): 4 Kbytes
• Max. Operating Frequency: 25 MHz
• Cpu: 8051-1C
• Max I/o Pins: 30
• Spi: 1
• Uart: 1
• Sram (kbytes): 0.75
• Eeprom (bytes): 512
• Self Program Memory: IAP
• Operating Voltage (vcc): 2.4 to 5.5
• Timers: 3
• Isp: SPI/OCD
• Watchdog: Yes

24.9.3
24.9.4
24.9.5
24.9.6
3654A–MICRO–8/09
I
I
Clock Signal Waveform for I
I
CC
CC
CC
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, V
0.45V
V
CC
- 0.5V
0.2 V
CC
0.7 V
CLOCK SIGNAL
CLOCK SIGNAL
Tests in Active and Idle Modes, t
CC
t
(NC)
CHCL
- 0.1V
CC
V
(NC)
(NC)
CC
V
V
CC
CC
RST
XTAL2
XTAL1
GND
RST
XTAL2
XTAL1
GND
RST
XTAL2
XTAL1
GND
t
CHCX
V
CC
V
V
CC
CC
I
CC
t
V
CLCL
I
I
CC
CC
CC
V
V
CC
CC
t
CLCH
CLCH
t
CHCX
= t
CHCL
CC
= 5 ns
= 2V to 5.5V
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