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MC-458CA721ESA-A80 数据表(PDF) 5 Page - NEC

部件名 MC-458CA721ESA-A80
功能描述  8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE SO DIMM
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制造商  NEC [NEC]
网页  http://www.nec.com/
标志 NEC - NEC

MC-458CA721ESA-A80 数据表(HTML) 5 Page - NEC

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Data Sheet M14494EJ2V0DS00
5
MC-458CA721ESA, 458CA721PSA
Electrical Specifications
• All voltages are referenced to VSS (GND).
• After power up, wait more than 100
µs 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 GND
VCC
–0.5 to +4.6
V
Voltage on input pin relative to GND
VT
–0.5 to +4.6
V
Short circuit output current
IO
50
mA
Power dissipation
PD
5W
Operating ambient temperature
TA
0 to 70
°C
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
VCC
3.0
3.3
3.6
V
High level input voltage
VIH
2.0
VCC + 0.3
V
Low level input voltage
VIL
–0.3
+0.8
V
Operating ambient temperature
TA
070
°C
Capacitance (TA = 25
°°°°C, f = 1 MHz)
Parameter
Symbol
Test condition
MIN.
TYP.
MAX.
Unit
Input capacitance
CI1
A0 - A11, BA0(A13), BA1(A12),
/RAS, /CAS, /WE
17
34
pF
CI2
CLK0
23
37
CI3
CKE0
18
30
CI4
/CS0
18
30
CI5
DQMB0 - DQMB7
5
16.5
Data input/output capacitance
CI/O
DQ0 - DQ63, CB0 - CB7
5
13
pF


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