Rainbow Electronics DS1215 - 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