W9864G6JH-6 Winbond Electronics, W9864G6JH-6 Datasheet - Page 12

• Manufacturer Part Number: W9864G6JH-6
• Description: IC SDRAM 64MB 166MHZ 54TSOPII
• Manufacturer: Winbond Electronics

Specifications of W9864G6JH-6

• Format - Memory: RAM
• Memory Type: SDRAM
• Memory Size: 64M (4M x 16)
• Speed: 166MHz
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.3 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 54-TSOP II
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8. OPERATION MODE
Fully synchronous operations are performed to latch the commands at the positive edges of CLK.
Table 1 shows the truth table for the operation commands.
Table 1 Truth Table (Note (1), (2))
Notes:
(1) v = valid, x = Don't care, L = Low Level, H = High Level
(2) CKEn signal is input leve l when commands are provided.
(3) These are state of bank designated by BS0, BS1 signals.
(4) Device state is full page burst operation.
(5) Power Down Mode can not be entered in the burst cycle.
Bank Active
Bank Precharge
Precharge All
Write
Write with Auto-precharge
Read
Read with Auto-precharge
Mode Register Set
No-Operation
Burst Stop
Device Deselect
Auto-Refresh
Self-Refresh Entry
Self Refresh Exit
Clock suspend Mode
Entry
Power Down Mode Entry
Clock Suspend Mode Exit
Power Down Mode Exit
Data write/Output Enable
Data write/Output Disable
When this command asserts in the burst cycle, device state is clock suspend mode.
COMMAND
Active
Active
Active
Active
Active
Active
DEVICE
STATE
Active
Active
Active
Active
(Power
(S.R)
Down)
Any
Any
Any
Any
Idle
Idle
Idle
Idle
Idle
Any
idle
(3)
(3)
(3)
(3)
(4)
(5)
CKEn-1 CKEn DQM BS0, 1 A10
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
L
L
L
H
H
H
H
H
H
L
x
x
x
x
x
x
x
x
x
x
x
L
L
L
x
x
- 12 -
H
L
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
v
v
x
v
v
v
v
v
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
Publication Release Date: Aug. 31, 2010
H
H
H
L
v
L
L
v
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
A0-A9,
A11
V
x
x
v
v
v
v
v
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
W9864G6JH
CS
H
H
H
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
x
x
x
x
RAS
H
H
H
H
H
H
H
H
H
L
L
L
L
x
L
L
x
x
x
x
x
x
x
Revision A02
CAS
H
H
H
H
H
H
H
H
L
L
L
L
L
x
L
L
x
x
x
x
x
x
x
WE
H
H
H
H
H
H
X
H
X
X
H
L
L
L
L
L
L
x
x
x
x
x
x