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MC-45D32CC721KFA-C80 Datasheet(PDF) 5 Page - NEC

Part # MC-45D32CC721KFA-C80
Description  32 M-WORD BY 72-BIT DDR SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

MC-45D32CC721KFA-C80 Datasheet(HTML) 5 Page - NEC

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Preliminary Data Sheet M14900EJ1V0DS00
5
MC-45D32CC721
Electrical Specifications
• All voltages are referenced to VSS (GND).
• After power up, wait more than 1 ms and then, execute Power on sequence and CBR (auto) refresh before
proper device operation is achieved.
Absolute Maximum Ratings
Parameter
Symbol
Condition
Rating
Unit
Voltage on power supply pin relative to VSS
VDD, VDDQ
–0.5 to +3.6
V
Voltage on input pin relative to VSS
VT
–0.5 to +3.6
V
Short circuit output current
IO
50
mA
Power dissipation
PD
12
W
Storage temperature
Tstg
–55 to +125
°C
Caution
Exposing the device to stress above those listed in Absolute Maximum Ratings could cause
permanent damage. The device is not meant to be operated under conditions outside the limits
described in the operational section of this specification. Exposure to Absolute Maximum Rating
conditions for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter
Symbol
Condition
MIN.
TYP.
MAX.
Unit
Supply voltage
VDD
2.3
2.5
2.7
V
Supply voltage for DQ, DQS
VDDQ
2.3
2.5
2.7
V
Input reference voltage
VREF
0.49
× VDDQ
0.51
× VDDQV
Termination voltage
VTT
VREF
− 0.04
VREF
VREF + 0.04
V
High level dc input voltage
VIH (DC)
VREF + 0.15
VDD + 0.3
V
Low level dc input voltage
VIL (DC)
−0.3
VREF
− 0.15
V
Input differential voltage (CLK and /CLK)
VID (DC)
0.36
VDDQ + 0.6
V
Input crossing point voltage (CLK and /CLK)
VIX
0.5
× VDDQ–0.2
0.5
× VDDQ+0.2
V
Operating ambient temperature
TA
070
°C
Capacitance (TA = 25
°°°°C, f = 100 MHz)
Parameter
Symbol
Test condition
MIN.
TYP.
MAX.
Unit
Input capacitance
CI1
A0 - A11, BA0, BA1, /RAS,
/CAS, /WE
TBD
TBD
pF
CI2
CK0 - CK2, /CK0 - /CK2
TBD
TBD
CI3
CKE0
TBD
TBD
CI4
/S0, /S1
TBD
TBD
Data input/output capacitance
CI/O1
DM(0-8)/DQS(9-17),
DQS0 - DQS8
TBD
TBD
pF
CI/O2
DQ0 - DQ63, CB0 - CB7
TBD
TBD


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