DS2152
AC CHARACTERISTICS -
(0°C to 70°C; VDD=5V ± 5% for DS2152L;
TRANSMIT SIDE
PARAMETER
-40°C to +85°C; VDD=5V ± 5% for DS2152LN)
SYMBOL MIN TYP MAX UNITS NOTES
TCLK Period
TCLK Pulse Width
tCP
tCH
tCL
tLP
tLH
tLL
tSP
tSP
tSH
tSL
tSU
648
ns
ns
ns
ns
ns
75
75
TCLKI Period
TCLKI Pulse Width
648
75
75
122
122
50
TSYSCLK Period
648
448
ns
ns
ns
ns
ns
1
2
TSYSCLK Pulse Width
50
20
TSYNC or TSSYNC Set Up to TCLK or
TSYSCLK Falling
tCH-5 or
tSH-5
TSYNC or TSSYNC Pulse Width
TSER, TSIG, TDATA, TLINK, TPOSI,
TNEGI Set Up to TCLK, TSYSCLK,
TCLKI Falling
tPW
tSU
50
20
ns
ns
TSER, TSIG, TDATA, TLINK, TPOSI,
TNEGI Hold from TCLK, TSYSCLK,
TCLKI Falling
TCLK, TCLKI, or TSYSCLK Rise and
Fall Times
tHD
20
ns
ns
tR, tF
25
Delay TCLKO to TPOSO, TNEGO Valid
Delay TCLK to TESO Valid
Delay TCLK to TCHBLK, TCHBLK,
TSYNC, TLCLK
tDD
tD1
tD2
50
50
50
ns
ns
ns
Delay TSYSCLK to TCHCLK, TCHBLK
See Figures 16-7 to 16-9 for details.
tD3
75
ns
NOTES:
1. TSYSCLK=1.544 MHz.
2. TSYSCLK=2.048 MHz.
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DALLAS [ DALLAS SEMICONDUCTOR ]
