參數(shù)資料
型號: MH64D64AKQH-75
廠商: Mitsubishi Electric Corporation
元件分類: 圓形連接器
英文描述: Circular Connector; No. of Contacts:128; Series:MS27484; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:24; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:24-35 RoHS Compliant: No
中文描述: 4294967296位(67108864字64位),雙數(shù)據(jù)速率同步DRAM模塊
文件頁數(shù): 4/40頁
文件大?。?/td> 362K
代理商: MH64D64AKQH-75
MH64D64AKQH-75,-10
4,294,967,296-BIT (67,108,864-WORD BY 64-BIT) Double Data Rate Synchronous DRAM Module
MIT-DS-0418-0.1
17.May.2001
Preliminary Spec.
Some contents are subject to change without notice.
MITSUBISHI LSIs
MITSUBISHI
ELECTRIC
4
PIN FUNCTION
CK0-2,/CK0-2
Input
Clock: CK0-2 and /CK0-2 are differential clock inputs. All address and control
input signals are sampled on the crossing of the positive edge of CK0-2 and
negative edge of /CK0-2. Output (read) data is referenced to the crossings of
CK0-2 and /CK0-2 (both directions of crossing).
CKE0-1
Input
Clock Enable: CKE0-1 controls internal clock. When CKE0-1 is low, internal
clock for the following cycle is ceased. CKE0-1 is also used to select auto /
self refresh. After self refresh mode is started, CKE0-1 becomes
asynchronous input. Self refresh is maintained as long as CKE is low.
/S0-1
Input
Chip Select: When /S0-1 is high, any command means No Operation.
/RAS, /CAS, /WE
Input
Combination of /RAS, /CAS, /WE defines basic commands.
A0-12
Input
A0-12 specify the Row / Column Address in conjunction with BA0,1. The Row
Address is specified by A0-12. The Column Address is specified by A0-9.
A10 is also used to indicate precharge option. When A10 is high at a read / write
command, an auto precharge is performed. When A10 is high at a precharge
command, all banks are precharged.
BA0-1
Input
DQ 0-63
Input / Output
DQS0-7
Vdd, Vss
Power Supply
Power Supply for the memory array and peripheral circuitry.
Bank Address: BA0-1 specifies one of four banks in SDRAM to which a command
is applied. BA0-1 must be set with ACT, PRE, READ, WRITE commands.
Data Input/Output: Data bus
Data Strobe: Output with read data, input with write data. Edge-aligned with read
data, centered in write data. Used to capture write data.
SYMBOL
TYPE
DESCRIPTION
Input
Vref
Input
SSTL_2 reference voltage.
Vddspd
Power Supply
Power Supply for SPD
SDA
Input / Output
This is a bidirectional pin used to transfer data into or out of the SPD EEPROM.
A resistor must be connected to Vdd to act as a pullup.
SCL
Input / Output
This signal is used to clock data into and out of the SPD EEPROM. A resistor
may be connected from the SCL to Vdd to act as a pullup.
SA0-2
Address pins used to select the Serial Presence Detect.
Input
DM0-7
Input / Output
Input Data Mask: DM is an input mask signal for write data. Input data is masked when DM0-7 is
sampled HIGH along with that input data during a WRITE access. DM0-7 is sampled on both
edges of DQS0-7. Although DM pins are input only, the DM0-7 loading matches the DQ0-63 and
DQS0-7 loading.
VddID
Vdd identification flag
Output
相關PDF資料
PDF描述
MH88422BD-1 Data Access Arrangement Preliminary Information
MH88422 Line Interface Circuit Preliminary Information
MH88422-1 Data Access Arrangement Preliminary Information
MH88422-2 Data Access Arrangement Preliminary Information
MH88422-3 Data Access Arrangement Preliminary Information
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