参数资料
型号: V54C3128404VBLF8PC
厂商: PROMOS TECHNOLOGIES INC
元件分类: DRAM
英文描述: 32M X 4 SYNCHRONOUS DRAM, 6 ns, PBGA60
封装: LEAD FREE, MO-210, FBGA-60
文件页数: 14/54页
文件大小: 693K
代理商: V54C3128404VBLF8PC
21
V54C3128(16/80/40)4VB Rev. 1.2 January 2005
ProMOS TECHNOLOGIES
V54C3128(16/80/40)4VB
1. Bank Activate Command Cycle
(CAS latency = 3)
2. Burst Read Operation
(Burst Length = 4, CAS latency = 2, 3)
3. Read Interrupted by a Read
ADDRESS
CLK
T0
T
T1
T
TTT
COMMAND
NOP
Bank A
Row Addr.
Bank A
Activate
Write A
with Auto
Bank A
Col. Addr.
. . . . . . . . . .
Bank B
Activate
Bank A
Row Addr.
Bank A
Activate
tRCD
: “H” or “L”
tRC
Precharge
tRRD
Bank B
Row Addr.
COMMAND
READ A
NOP
DOUT A0
CAS latency = 2
t
CK3, I/O’s
CAS latency = 3
DOUT A1
DOUT A2
DOUT A3
NOP
CLK
T0
T2
T1
T3
T4
T5
T6
T7
T8
t
CK2, I/O’s
DOUT A0
DOUT A1
DOUT A2
DOUT A3
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