參數(shù)資料
型號: HB52E649EN-B6B
元件分類: DRAM
英文描述: 64M X 72 SYNCHRONOUS DRAM MODULE, 6 ns, DMA168
封裝: DIMM-168
文件頁數(shù): 15/29頁
文件大小: 134K
代理商: HB52E649EN-B6B
HB52E648EN/HB52E649EN-A6B/B6B
22
AC Characteristics (Ta = 0 to 65
°C, V
CC = 3.3 V ± 0.3 V, VSS = 0 V)
HB52E648EN/649EN
-A6B/B6B
Parameter
HITACHI
Symbol
PC100
Symbol
Min
Max
Unit
Notes
System clock cycle time
(
CE latency = 2)
t
CK
Tclk
10
ns
1
(
CE latency = 3)
t
CK
Tclk
10
ns
CK high pulse widtht
CKH
Tch3
ns
1
CK low pulse widtht
CKL
Tcl
3
ns
1
Access time from CK
(
CE latency = 2)
t
AC
Tac
6
ns
1, 2
(
CE latency = 3)
t
AC
Tac
6
ns
Data-out hold time
t
OH
Toh
3
ns
1, 2
CK to Data-out low impedancet
LZ
2
ns
1, 2, 3
CK to Data-out high impedancet
HZ
6
ns
1, 4
Data-in setup time
t
DS
Tsi
2
ns
1
Data in hold time
t
DH
Thi
1
ns
1
Address setup time
t
AS
Tsi
2
ns
1
Address hold time
t
AH
Thi
1
ns
1
CKE setup time
t
CES
Tsi
2
ns
1, 5
CKE setup time for power down exit
t
CESP
Tpde
2
ns
1
CKE hold time
t
CEH
Thi
1
ns
1
Command setup time
t
CS
Tsi
2
ns
1
Command hold time
t
CH
Thi
1
ns
1
Ref/Active to Ref/Active command
period
t
RC
Trc
70
ns
1
Active to precharge command period
t
RAS
Tras
50
120000
ns
1
Active command to column command
(same bank)
t
RCD
Trcd
20
ns
1
Precharge to active command period
t
RP
Trp
20
ns
1
Write recovery or data-in to precharge
lead time
t
DPL
Tdpl
20
ns
1
Active (a) to Active (b) command
period
t
RRD
Trrd
20
ns
1
Transition time (rise and fall)
t
T
15ns
Refresh period
t
REF
—64
ms
相關(guān)PDF資料
PDF描述
HB52R649E1U-A6B 64M X 72 SYNCHRONOUS DRAM MODULE, 6.9 ns, DMA168
HB56R864ES-7B 8M X 64 FAST PAGE DRAM MODULE, 70 ns, DMA168
HB601R SINGLE COLOR LED, BLUE, 1.7 mm
HBCD-050-06.00-SBL-STR INTERCONNECTION DEVICE
HBCD-050-06.00-SBL-TEU INTERCONNECTION DEVICE
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HB52E88EM-B6 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x64 SDRAM Module
HB52E89E1P-B6 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x72 SDRAM Module
HB52E89EM-B6 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x72 SDRAM Module
HB52F168GB-75B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x64 SDRAM Module
HB52F168GB-75BL 制造商:未知廠家 制造商全稱:未知廠家 功能描述:x64 SDRAM Module