Rainbow Electronics AT89LP216 - Manual (Page 77)

77
3621A–MICRO–6/06
AT89LP216 [Preliminary]
24.3 Serial Peripheral Interface Timing
Table 24-1. SPI Master Characteristics
Symbol Parameter Min Max Units
t
CLCL
Oscillator Period 41.6 ns
t
SCK
Serial Clock Cycle Time 4t
CLCL
ns
t
SHSL
Clock High Time t
SCK
/2 - 25 ns
t
SLSH
Clock Low Time t
SCK
/2 - 25 ns
t
SR
Rise Time 25 ns
t
SF
Fall Time 25 ns
t
SIS
Serial Input Setup Time 10 ns
t
SIH
Serial Input Hold Time 10 ns
t
SOH
Serial Output Hold Time 10 ns
t
SOV
Serial Output Valid Time 35 ns
Table 24-2. SPI Slave Characteristics
Symbol Parameter Min Max Units
t
CLCL
Oscillator Period 41.6 ns
t
SCK
Serial Clock Cycle Time 4t
CLCL
ns
t
SHSL
Clock High Time 1.5 t
CLCL
- 25 ns
t
SLSH
Clock Low Time 1.5 t
CLCL
- 25 ns
t
SR
Rise Time 25 ns
t
SF
Fall Time 25 ns
t
SIS
Serial Input Setup Time 10 ns
t
SIH
Serial Input Hold Time 10 ns
t
SOH
Serial Output Hold Time 10 ns
t
SOV
Serial Output Valid Time 35 ns
t
SOE
Output Enable Time 10 ns
t
SOX
Output Disable Time 25 ns
t
SSE
Slave Enable Lead Time 10 ns
t
SSD
Slave Disable Lag Time 0 ns