參數(shù)資料
型號(hào): HM5264805D
廠商: Hitachi,Ltd.
英文描述: 64M LVTTL interface SDRAM(64M LVTTL接口同步DRAM)
中文描述: 6400 LVTTL接口的SDRAM(6400 LVTTL接口同步的DRAM)
文件頁數(shù): 51/67頁
文件大?。?/td> 615K
代理商: HM5264805D
HM5264165D-A60, HM5264805D-A60, HM5264405D-A60
51
AC Characteristics
(Ta = 0 to 70C, V
CC
, V
CC
Q = 3.3 V
±
0.3 V, V
SS
, V
SS
Q = 0 V)
HM5264165D/
HM5264805D/
HM5264405D
-A60
Parameter
HITACHI
Symbol
PC/100
Symbol
Min
Max
Unit
Notes
System clock cycle time
(
CAS
latency = 2)
(
CAS
latency = 3)
t
CK
t
CK
t
CKH
t
CKL
Tclk
10
ns
1
Tclk
10
ns
CLK high pulse width
Tch
3
ns
1
CLK low pulse width
Tcl
3
ns
1
Access time from CLK
(
CAS
latency = 2)
(
CAS
latency = 3)
t
AC
t
AC
t
OH
t
LZ
t
HZ
Tac
6
ns
1, 2
Tac
6
ns
Data-out hold time
Toh
3
ns
1, 2
CLK to Data-out low impedance
2
ns
1, 2, 3
CLK to Data-out high impedance
(
CAS
latency = 2, 3)
6
ns
1, 4
Input setup time
t
AS
, t
CS
, t
DS
,
t
CES
t
CESP
t
AH
, t
CH
, t
DH
,
t
CEH
t
RC
t
RAS
t
RCD
Tsi
2
ns
1, 5, 6
CKE setup time for power down exit
Tpde
2
ns
1
Input hold time
Thi
1
ns
1, 6
Ref/Active to Ref/Active command period
Trc
70
ns
1
Active to Precharge command period
Tras
50
120000
ns
1
Active command to column command
(same bank)
Trcd
20
ns
1
Precharge to active command period
t
RP
t
DPL
Trp
20
ns
1
Write recovery or data-in to precharge lead
time
Tdpl
10
ns
1
Active (a) to Active (b) command period
t
RRD
t
T
t
REF
Trrd
20
ns
1
Transition time (rise to fall)
1
5
ns
Refresh period
64
ms
相關(guān)PDF資料
PDF描述
HM5264405F 64M LVTTL interface SDRAM(64M LVTTL接口同步DRAM)
HM5264805F-75 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:36; Connector Shell Size:22; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
HM5264805F-A60 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:36; Connector Shell Size:22; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
HM5264805F-B60 Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; Number of Contacts:36; Connector Shell Size:22; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight
HM5264165A60 64M LVTTL interface SDRAM 133 MHz/100 MHz
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參數(shù)描述
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HM5264805F 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz