W9864G6JH-6 Winbond Electronics, W9864G6JH-6 Datasheet - Page 37

• 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

11.16 Auto-precharge Timing (Read Cycle)
(2) CAS Latency=3
(1) CAS Latency=2
( b ) burst length = 2
( d ) burst length = 8
( b ) burst length = 2
( d ) burst length = 8
( a ) burst length = 1
( c ) burst length = 4
( a ) burst length = 1
( c ) burst length = 4
Command
Command
Command
Command
Command
Command
Command
Command
DQ
DQ
DQ
DQ
DQ
Note )
DQ
DQ
DQ
Read
Read
Read
Read
Read
Read
Read
Read
0
When the Auto precharge command is asserted, the period from Bank Activate command to
the start of internal precgarging must be at least t
Read
Act
AP
AP
AP
1
Q0
AP
Q0
Q0
Q0
AP
t
represents the Bank Activate command.
2
RP
represents the start of internal precharging.
represents the Read with Auto precharge command.
t
RP
Act
Q1
Q1
Q1
Q0
Q0
Q0
Q0
t
RP
3
t
RP
Act
Act
AP
Q2
Q2
Q1
AP
Q1
Q1
4
- 37 -
Act
Q3
Q3
Q2
Q2
t
5
RP
t
RP
Act
Q4
Q3
Q3
RAS
6
(min).
Publication Release Date: Aug. 31, 2010
Act
Q5
Q4
7
AP
Q6
AP
Q5
8
Q7
Q6
t
9
RP
W9864G6JH
t
RP
Act
Q7
10
Revision A02
Act
11