Rainbow Electronics DS1215 User Manual
Page 9
DS1215
032697 9/15
AC ELECTRICAL CHARACTERISTICS ROM/RAM = V
CCO
(0
°
C to 70
°
C; V
CC
= 5V
±
10%)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Read Cycle Time
t
RC
120
ns
CEI Access Time
t
CO
100
ns
OE Access Time
t
OE
100
ns
CEI to Output in Low Z
t
COE
10
ns
OE to Output in Low Z
t
OEE
10
ns
CEI to Output in High Z
t
OD
40
ns
OE to Output in High Z
t
ODO
40
ns
Address Setup Time
t
AS
20
ns
Address Hold Time
t
AH
10
ns
Read Recovery
t
RR
20
ns
Write Cycle Time
t
WC
120
ns
CEI Pulse Width
t
CW
100
ns
OE Pulse Width
t
OW
100
ns
Write Recovery
t
WR
20
ns
4
Data Setup Time
t
DS
40
ns
5
Data Hold Time
t
DH
10
ns
5
RST Pulse Width
t
RST
200
ns
CEI Propagation Delay
t
PD
5
10
20
ns
2, 3
CEI High to Power Fail
t
PF
0
ns
AC ELECTRICAL CHARACTERISTICS ROM/RAM = V
CCO
(0
°
C to 70
°
C; V
CC
< 4.5V)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
Recovery at Power–Up
t
REC
2
ms
V
CC
Slew Rate 4.5 – 3.0V
t
F
0
ms