DS1500_11 Datasheet, PDF (4/20 Pages) Maxim Integrated Products – Y2K Watchdog RTC with Nonvolatile Control

DS1500 Y2KC Watchdog RTC with Nonvolatile Control
AC OPERATING CHARACTERISTICS (continued)
(V_CCI = 3.3V ±10%, T_A = Over the Operating Range.)
PARAMETER
SYMBOL CONDITIONS MIN
Read Cycle Time
Address Access Time
CS to DQ Low-Z
CS Access Time
CS Data Off Time
OE to DQ Low-Z (0°C to +85°C)
OE to DQ Low-Z (-40°C to 0°C)
OE Access Time
OE Data Off Time
Output Hold from Address
Write Cycle Time
Address Setup Time
WE Pulse Width
CS Pulse Width
Data Setup Time
Data Hold Time
Address Hold Time
WE Data Off Time
Write Recovery Time
CEI to CEO Propagation Delay
Pulse Width, OE, WE, or CS High
Pulse Width, OE, WE, or CS Low
t_RC
120
t_AA
t_CSL
(Note 10)
5
t_CSA
t_CSZ
(Note 10)
t_OEL
(Note 10)
5
t_OEL
(Note 10)
2
t_OEA
t_OEZ
(Note 10)
t_OH
5
t_WC
120
t_AS
0
t_WEW
100
t_CSW
110
t_DS
80
t_DH
5
t_AH
0
t_WEZ
(Note 10)
t_WR
15
t_CEPD
10
PW _HIGH
40
PW_LOW
100
TYP MAX UNITS
ns
120
ns
ns
120
ns
40
ns
ns
ns
100
ns
35
ns
ns
ns
ns
ns
ns
ns
ns
ns
40
ns
ns
ns
ns
ns
Figure 1. Read Cycle Timing
A0-A4
CS
t_RC
t_AA
t_CSA
t_CSZ
t_OH
t_CSL
OE
t_OEA
t_OEZ
DQ0-DQ7
t_OEL
VALID
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