UPD98402A Datasheet, PDF (20/26 Pages) NEC – LOCAL ATM SONET FRAMER

µPD98402A
(5) SAR Interface (Receiver Side)
Parameters
RCLK cycle time
RCLK high level width
RCLK low level width
RCLK↑→EMPTY↑↓delay time
RENBL setup time (to RCLK↑)
RENBL hold time (to RCLK↑)
RCLK↑→RSOC↑↓ delay time
RCLK↑→RDO0-RDO7 delay time
Symbol
Conditions
tSYCR
tSRH
tSRL
tED load capacitor = 15 pF
tSREK
tHKRE
tRSD load capacitor = 15 pF
tRDD load capacitor = 15 pF
SAR Interface (Receiver Side)
RCLK
EMPTY
RENBL
RSOC
RDO0-RDO7
tSYCR
tSRH
tSRL
tRSD
tRDD
P48
tED
H1
tED
tRSD
tRDD
H2
tSREK
MIN. TYP. MAX. Unit
30
125
ns
12
110
ns
12
110
ns
5
17
ns
12
—
ns
3
—
ns
0
17
ns
0
17
ns
tHKRE
H3
20