Rainbow Electronics W982516CH - Manual (Page 6)

W982516CH
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AC CHARACTERISTICS AND OPERATING CONDITION
(Vcc = 3.3V
±
0.3V, Ta = 0 to 70°C for –6/-7/-75/75L, Ta=-40 to 85°C for 75I ; Notes: 5, 6, 7, 8)
PARAMETER SYM. -7
(PC133, CL2)
-75/75L/75I
(PC133, CL3)
UNIT
MIN. MAX. MIN. MAX.
Ref/Active to Ref/Active Command Period t
RC
56 65 nS
Active to precharge Command Period t
RAS
40 100000 45 100000 nS
Active to Read/Write Command Delay Time t
RCD
15 20 nS
Read/Write(a) to Read/Write(b) Command
Period t
CCD
1 1 tCK
Precharge to Active Command Period t
R P
15 20 nS
Active(a) to Active(b) Command Period t
RRD
15 15 nS
Write Recovery Time CL* = 2 t
WR
2 2 tCK
CL* = 3 2 2 tCK
CLK Cycle Time CL* = 2 t
C K
7.5 1000 10 1000 nS
CL* = 3 7 1000 7.5 1000 nS
CLK High Level Width t
CH
2.5 2.5 nS
CLK Low Level Width t
C L
2.5 2.5 nS
Access Time from CLK CL* = 2 t
AC
5.4 6 nS
CL* = 3 5.4 5.4 nS
Output Data Hold Time t
OH
3 3 nS
Output Data High Impedance Time t
HZ
3 7 3 7.5 nS
Output Data Low Impedance Time t
LZ
0 0 nS
Power Down Mode Entry Time t
SB
0 7 0 7.5 nS
Transition Time of CLK
(Rise and Fall) t
T
0.5 10 0.5 10 nS
Data-in Set-up Time t
DS
1.5 1.5 nS
Data-in Hold Time t
DH
0.8 0.8 nS
Address Set-up Time t
AS
1.5 1.5 nS
Address Hold Time t
AH
0.8 0.8 nS
CKE Set-up Time t
CKS
1.5 1.5 nS
CKE Hold Time t
CKH
0.8 0.8 nS
Command Set-up Time t
CMS
1.5 1.5 nS
Command Hold Time t
CMS
0.8 0.8 nS
Refresh Time t
REF
64 64 mS
Mode register Set Cycle Time t
RSC
14 15 nS
*CL = CAS Latency