IC42S32202-6B ICSI [Integrated Circuit Solution Inc], IC42S32202-6B Datasheet - Page 13
IC42S32202-6B
Manufacturer Part Number
IC42S32202-6B
Description
512K x 32 Bit x 4 Banks (64-MBIT) SDRAM
Manufacturer
ICSI [Integrated Circuit Solution Inc]
Datasheet
1.IC42S32202-6B.pdf
(62 pages)
- Current page: 13 of 62
- Download datasheet (749Kb)
IC42S32202/L
Integrated Circuit Solution Inc.
DR042-0C 08/17/2004
6
Concurrent Auto Precharge
An access command (READ or WRITE) to another bank while an access command with auto precharge enabled
is executing is not allowed by SDRAMs, unless the SDRAM supports CONCURRENT AUTO PRECHARGE.
ICSI SDRAMs support CONCURRENT AUTO PRECHARGE. Four cases where CONCURRENT AUTO
PRECHARGE occurs are defined below.
READ with Auto Precharge
· Interrupted by a READ (with or without auto precharge): A READ to bank m will interrupt a READ on bank n,
· Interrupted by a WRITE (with or without auto precharge): A WRITE to bank m will interrupt a READ on bank n
CAS latency later. The PRECHARGE to bank n will begin when the READ to bank m is regis-tered.
when registered. DQM should be used two clocks prior to the WRITE command to prevent bus contention. The
PRECHARGE to bank n will begin when the WRITE to bank m is registered.
Internal
States
Internal
States
NOTE: 1. DQM is HIGH at T2 to prevent D
NOTE: DQM is LOW.
READ With Auto Precharge Interrupted by a WRITE
READ With Auto Precharge Interrupted by a READ
COMMAND
ADDRESS
COMMAND
BANK m
BANK n
ADDRESS
BANK m
BANK n
CLK
DQM
DQ
CLK
DQ
1
Active
Page
READ - AP
Page Active
BANK n,
T0
BANK n
NOP
COL a
T0
READ with Burst of 4
CAS Latency = 3 (BANK n)
READ - AP
Page Active
BANK n,
Page Active
T1
NOP
BANK n
COL a
T1
OUT
READ with Burst of 4
CAS Latency = 3 (BANK n)
-a+1 from contending with D
T2
NOP
T2
NOP
T3
D
NOP
OUT
a
BANK m,
READ - AP
T3
BANK m
COL d
Interrupt Burst, Precharge
CAS Latency = 3 (BANK m)
READ with Burst of 4
BANK m,
WRITE - AP
COL d
BANK m
T4
D
d
IN
IN
Interrupt Burst, Precharge
WRITE with Burst of 4
-d at T4.
T4
NOP
D
T5
OUT
a
t
d + 1
RP - BANK n
NOP
D
IN
t
RP - BANK n
T5
NOP
T6
D
a + 1
d + 2
NOP
D
OUT
IN
DON’T CARE
T6
NOP
T7
t WR - BANK m
d + 3
NOP
D
D
IN
OUT
d
Write-Back
Idle
DON T CARE
Idle
T7
NOP
t RP - BANK m
Precharge
D
d + 1
OUT
13
Related parts for IC42S32202-6B
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
IC61C1024-15K128K x 8 HIGH-SPEED CMOS STATIC RAM
Manufacturer:
ICSI Integrated Circuit Solution Inc
Datasheet:
Part Number:
Description:
32K x 16 HIGH-SPEED CMOS STATIC RAM
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet:
Part Number:
Description:
64K x 8 HIGH-SPEED CMOS STATIC RAM
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet:
Part Number:
Description:
32K x 32 SYNCHRONOUS PIPELINED STATIC RAM
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet:
Part Number:
Description:
8K x 8 HIGH-SPEED CMOS STATIC RAM
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet:
Part Number:
Description:
128K x 8 HIGH-SPEED CMOS STATIC RAM
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet:
Part Number:
Description:
128K x 8 LOW POWER AND LOW Vcc
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet:
Part Number:
Description:
128K x 16 LOW VOLTAGE, ULTRA LOW POWER CMOS STATIC RAM
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet:
Part Number:
Description:
256K x 8 LOW POWER and LOW Vcc CMOS STATIC RAM
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet:
Part Number:
Description:
High Performance Communication Buffer
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet:
Part Number:
Description:
16Meg x 8, 8Meg x16 & 4Meg x 32 128-MBIT SYNCHRONOUS DRAM
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet:
Part Number:
Description:
2(1)M words x 8(16) bits x 4 banks (64-mbit) synchronous dynamic ram
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet:
Part Number:
Description:
1M x 16 (16-MBIT) DYNAMIC RAM WITH EDO PAGE MODE
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet:
Part Number:
Description:
256K x 16 (4-MBIT) DYNAMIC RAM WITH EDO PAGE MODE
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet:
Part Number:
Description:
1Mx4 bit Dynamic RAM with EDO Page Mode
Manufacturer:
ICSI [Integrated Circuit Solution Inc]
Datasheet: