TC9462F_01 Datasheet, PDF (8/17 Pages) Toshiba Semiconductor – Digital Servo Single Chip Processor

AC Characteristics
1. Microcomputer Interface Timing
Characteristics
CCE “H” clock pulse width
CCE status data access time
Status data disable time
CCE , BUCK delay pulse width
BUCK “L” clock pulse width
BUCK “H” clock pulse width (1)
BUCK “H” clock pulse width (2)
BUCK “H” clock pulse width (3)
BUCK “H” clock pulse width (4)
Write data set-up time
Write data hold time
PRTY data access time
Data disable time
Read data access time
Data disable time
Symbol
t_CC
t_CS
t_SZ1
t_CB
t_BLW
t_BLW
t_BHW
t_BHW
t_BHW
t_BHW
t_WS
t_WH
t_BA
t_SZ2
t_RD
t_SZ3
Test
Circuit
¾
Test Condition
¾
¾ CCE falling reference
¾ CCE rising reference
¾ CCE falling reference
¾ Write, SRC mode
¾ QDRC mode
¾ Write, SRC mode
¾ QDRC mode (´1)
¾ QDRC mode (´2)
¾ QDRC mode (´4)
¾ BUCK rising reference
¾ BUCK rising reference
¾ BUCK falling reference
¾ BUCK falling reference
¾ BUCK falling reference
¾ BUCK rising reference
(1) Idle mode
CCE
BUCK
BUSi
BUSi
(output)
ST
t_CS
Idol mode
TC9462F
Min Typ. Max Unit
120 ¾
¾
0
¾
¾
0
¾
¾
0
¾
¾
120 ¾
¾
240 ¾
¾
120 ¾
¾
3000 ¾
¾
ns
1500 ¾
¾
800 ¾
¾
60
¾
¾
20
¾
¾
0
¾
¾
0
¾
¾
0
¾
¾
0
¾
¾
t_CC
t_SZ1
8
2001-11-05