EM636327Q-7 Etron Technology Inc., EM636327Q-7 Datasheet - Page 21

• Manufacturer Part Number: EM636327Q-7
• Description: 512K x 32 High Speed Synchronous Graphics DRAM(SGRAM)
• Manufacturer: Etron Technology Inc.

Electrical Characteristics and Recommended A.C. Operating Conditions
(V
* CL is CAS# Latency.
Preliminary
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RC
RCD
RP
RRD
RAS
WR
CK1
CK2
CK3
CH
CL
AC1
AC2
AC3
CCD
OH
LZ
HZ
IS
IH
SRX
PDE
RSC
BWC
BPL
REF
DD
= 3.3V¡Ó0.3V, Ta = 0~70 C) (Note: 5, 6, 7, 8)
Row cycle time
(same bank)
RAS# to CAS# delay
(same bank)
Precharge to refresh/row activate command
(same bank)
Row activate to row activate delay
(different banks)
Row activate to precharge time
(same bank)
Write recovery time
Clock cycle time
Clock high time
Clock low time
Access time from CLK
(positive edge)
CAS# to CAS# Delay time
Data output hold time
Data output low impedance
Data output high impedance
Data/Address/Control Input set-up time
Data/Address/Control Input hold time
Minimum CKE "High" for SelfRefresh exit
PowerDown Exit set-up time
(Special) Mode Register Set Cycle time
Block Write Cycle time
Block Write to Precharge command period
Refresh time
A.C. Parameter
CL* = 1
CL* = 2
CL* = 3
CL* = 1
CL* = 2
CL* = 3
21
48/54/63/72/90
16/16/16/16/30
16/16/16/16/30
11/12/14/16/20
32/36/42/48/60
19/20/20/20/30
11/12/14/16/20
11/12/14/16/20
2/2/2.5/3/3.5
2/2/2.5/3/3.5
5.5/6/7/8/10
7/7.5/8/8/15
5.5/6/7/8/10
5.5/6/7/8/10
5.5/6/7/8/10
2/2/2/2.5/3
3.5/4/5/6/8
2/2/2/2/3
1/1/1/2/2
Min.
1
1
- 55/6/7/8/10
5/5/5.5/6.5/7.5
5.5/6/6.5/7/12
7/8/13/18/27
3.5/4/5/6/8
100,000
Max.
32
EM636327
Cycle
Unit
ms
ns
ns
December
Note
10
11
11
11
10
11
11
11
9
9
9
9
8
9
1998