AT89LP6440 Atmel Corporation, AT89LP6440 Datasheet - Page 180

• Manufacturer Part Number: AT89LP6440
• Manufacturer: Atmel Corporation

Specifications of AT89LP6440

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 38
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 153.8
• Sram (kbytes): 4.25
• Eeprom (bytes): 8192
• Self Program Memory: IAP
• Operating Voltage (vcc): 2.4 to 3.6
• Timers: 3
• Isp: SPI/OCD
• Watchdog: Yes

Table 26-5.
Table 26-6.
Figure 26-17. SPI Master Timing (CPHA = 0)
180
Symbol
t
t
t
t
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
SIS
SIH
SOH
SOV
CLCL
SCK
SHSL
SLSH
SR
SF
SIS
SIH
SOH
SOV
SOE
SOX
SSE
SSD
AT89LP3240/6440
SPI Master Characteristics
SPI Slave Characteristics
Parameter
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
(CPOL = 0)
(CPOL = 1)
MISO
MOSI
SCK
SCK
SS
t
t
SHSL
SLSH
t
SCK
t
t
SHSL
SLSH
t
SR
t
SOH
1.5 t
1.5 t
t
SOV
4t
41.6
Min
Min
CLCL
CLCL
10
10
10
10
10
CLCL
0
- 25
- 25
t
SF
t
SIS
t
SIH
Max
Max
10
35
25
25
10
35
10
25
3706C–MICRO–2/11
Units
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns