AT89LP4052 Atmel Corporation, AT89LP4052 Datasheet - Page 80

• 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

24.3
Table 24-1.
Table 24-2.
80
Symbol
t
t
t
t
t
t
t
t
t
t
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CLCL
SCK
SHSL
SLSH
SR
SF
SIS
SIH
SOH
SOV
CLCL
SCK
SHSL
SLSH
SR
SF
SIS
SIH
SOH
SOV
SOE
SOX
SSE
SSD
Serial Peripheral Interface Timing
AT89LP2052/LP4052
SPI Master Characteristics
SPI Slave Characteristics
Parameter
Oscillator Period
Serial Clock Cycle Time
Clock High Time
Clock Low Time
Rise Time
Fall Time
Serial Input Setup Time
Serial Input Hold Time
Serial Output Hold Time
Serial Output Valid Time
Parameter
Oscillator Period
Serial Clock Cycle Time
Clock High Time
Clock Low Time
Rise Time
Fall Time
Serial Input Setup Time
Serial Input Hold Time
Serial Output Hold Time
Serial Output Valid Time
Output Enable Time
Output Disable Time
Slave Enable Lead Time
Slave Disable Lag Time
1.5 t
1.5 t
t
t
SCK
SCK
4t
4t
41.6
41.6
Min
Min
CLCL
CLCL
/2 - 25
/2 - 25
10
10
CLCL
10
10
10
CLCL
0
- 25
- 25
Max
Max
25
25
10
35
25
25
10
35
10
25
3547J–MICRO–10/09
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns