User Manual

DS2153Q
022697 46/48
AC CHARACTERISTICS – TRANSMIT SIDE (0°C to 70°C; V
DD
=5V + 5%)
(–40°C to +85°C; V
DD
=5V +5%/–4% for DS2153QN)
PARAMETER SYMBOL MIN TYP MAX UNITS NOTES
TCLK Period t
P
488 ns
TCLK Pulse Width t
CH
t
CL
75
75
ns
ns
TSER, TLINK Set Up to TCLK
Falling
t
SU
25 ns 1
TSER, TLINK Hold from TCLK
Falling
t
HD
25 ns 1
TSYNC Setup to TCLK Falling t
HD
25 t
CH
–5 ns
TSYNC Pulse Width t
PW
25 ns
TCLK Rise/Fall Times t
R
, t
F
25 ns
Delay TCLK to TCHCLK t
D1
50 ns
Delay TCLK to TCHBLK t
D2
50 ns
Delay TCLK to TSYNC t
D3
50 ns
Delay TCLK to TLCLK t
D4
50 ns
NOTES:
1. If the transmit side elastic store is enabled,then TSER is sampled on the falling edge of SYSCLK and the
parameters t
SU
and t
HD
still apply.