AT89LP4052 Atmel Corporation, AT89LP4052 Datasheet - Page 82

• Manufacturer Part Number: AT89LP4052
• Manufacturer: Atmel Corporation

Specifications of AT89LP4052

• Flash (kbytes): 4 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 15
• Spi: 1
• Uart: 1
• Sram (kbytes): 0.25
• Operating Voltage (vcc): 2.4 to 5.5
• Timers: 2
• Isp: SPI
• Watchdog: Yes

Figure 24-4. SPI Slave Timing (CPHA = 1)
24.4
Figure 24-5. External Clock Drive Waveform
Table 24-3.
82
Symbol
1/t
t
t
t
t
t
CLCL
CHCX
CLCX
CLCH
CHCL
CLCL
External Clock Drive
AT89LP2052/LP4052
External Clock Drive Parameters
Parameter
Oscillator Frequency
Clock Period
High Time
Low Time
Rise Time
Fall Time
(CPOL = 0)
(CPOL = 1)
MISO
MOSI
SCK
SCK
SS
Min
50
12
12
0
V
CC
= 2.4V to 5.5V
Max
20
5
5
3547J–MICRO–10/09
Units
MHz
ns
ns
ns
ns
ns