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参数资料
| 型号： | 42S16800A |
| 厂商： | Integrated Silicon Solution, Inc. |
| 英文描述： | 16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM |
| 中文描述： | 16Meg × 8，8Meg x16 |
| 文件页数： | 2/22页 |
| 文件大小： | 540K |
| 代理商： | 42S16800A |
ISSI
10
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
PRELIMINARY INFORMATION
Rev. 00C
01/20/05
IS42S81600A, IS42S16800A, IS42S32400A
CS
RAS
RAS CAS
CAS
WE
Address
Command
Action
Idle
H
X
DESL
Nop
L
HHH
X
NOP
Nop
L
HHL
X
BST
Nop
L
H
L
H
BA, CA, A10
READ/READA
ILLEGAL (2)
L
H
L
A, CA, A10
WRIT/ WRITA
ILLEGAL(2)
L
H
BA, RA
ACT
Row activating
L
H
L
BA, A10
PRE/PALL
Nop
L
H
X
REF
Auto refresh
L
OC, BA1=L
MRS
Mode register set
L
OC, BA1=H
EMRS
Extended mode register set
Row Active
H
X
DESL
Nop
L
HHH
X
NOP
Nop
L
HHL
X
BST
Nop
L
H
L
H
BA, CA, A10
READ/READA
Begin read (3)
L
H
L
BA, CA, A10
WRIT/ WRITA
Begin write (3)
L
H
BA, RA
ACT
ILLEGAL (2)
L
H
L
BA, A10
PRE/PALL
Precharge/Precharge all banks(
L
H
X
REF
ILLEGAL
L
OC, BA
MRS/EMRS
ILLEGAL
Read
H
X
DESL
Continue burst to end to
Row active
L
H
X
NOP
Continue burst to end Row
Row active
L
H
L
X
BST
Burst stop Row active
L
H
L
H
BA, CA, A10
READ/READA
Terminate burst,
begin new read (5)
L
H
L
BA, CA, A10
WRIT/WRITA
Terminate burst,
begin write (5, 6)
L
H
BA, RA
ACT
ILLEGAL (2)
L
H
L
BA, A10
PRE/PALL
Terminate burst
Precharging
L
H
X
REF
ILLEGAL
L
OC, BA
MRS/EMRS
ILLEGAL
Write
H
X
DESL
Continue burst to end
Write recovering
L
H
X
NOP
Continue burst to end
Write recovering
L
H
L
X
BST
Burst stop Row active
L
H
L
H
BA, CA, A10
READ/READA
Terminate burst, start read :
Determine AP (5, 6)
L
H
L
BA, CA, A10
WRIT/WRITA
Terminate burst, new write :
Determine AP (5)
L
H
BA, RA
RA ACT
ILLEGAL (2)
L
H
L
BA, A10
PRE/PALL
Terminate burst Precharging (7)
L
H
X
REF
ILLEGAL
L
OC, BA
MRS/EMRS
ILLEGAL
FUNCTIONAL TRUTH TABLE
Note: H=VIH, L=VIL x= VIH or VIL, V = Valid Data, BA= Bank Address, CA+Column Address, RA=Row Address, OC= Op-Code
相关PDF资料 |
PDF描述 |
|---|---|
| 42S32200 | 512K Bits x 32 Bits x 4 Banks (64-MBIT) SYNCHRONOUS DYNAMIC RAM |
| 4300-000 | EMI/RFI FILTER Hermetically Sealed |
| 4300-000LF | |
| 4300-001 | EMI/RFI FILTER Hermetically Sealed |
| 4300-001LF | |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 42S16800L | 制造商:NEC 制造商全称:NEC 功能描述:3.3 V OPERATION 16 M-BIT DYNAMIC RAM 2 M-WORD BY 8-BIT, FAST PAGE MODE |
| 42S16800L-A60 | 制造商:NEC 制造商全称:NEC 功能描述:3.3 V OPERATION 16 M-BIT DYNAMIC RAM 2 M-WORD BY 8-BIT, FAST PAGE MODE |
| 42S16800L-A70 | 制造商:NEC 制造商全称:NEC 功能描述:3.3 V OPERATION 16 M-BIT DYNAMIC RAM 2 M-WORD BY 8-BIT, FAST PAGE MODE |
| 42S16800L-A80 | 制造商:NEC 制造商全称:NEC 功能描述:3.3 V OPERATION 16 M-BIT DYNAMIC RAM 2 M-WORD BY 8-BIT, FAST PAGE MODE |
| 42S17800L | 制造商:NEC 制造商全称:NEC 功能描述:3.3 V OPERATION 16 M-BIT DYNAMIC RAM 2 M-WORD BY 8-BIT, FAST PAGE MODE |
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