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CG6257AM Datasheet(PDF) 4 Page - Weida Semiconductor, Inc.

Part No. CG6257AM
Description  4Mb (256K x 16) Pseudo Static RAM
Download  12 Pages
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Manufacturer  WEIDA [Weida Semiconductor, Inc.]
Direct Link  http://www.weida.com.my/website/
Logo WEIDA - Weida Semiconductor, Inc.

CG6257AM Datasheet(HTML) 4 Page - Weida Semiconductor, Inc.

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PRELIMINARY
CG6257AM
38-XXXXX
Page - 4 - of 12
Thermal Resistance[10]
Electrical Characteristics Over the Operating Range
Parameter
Description
Test Conditions
CG6257AM-70
Unit
Min.
Typ.[8]
Max.
VCC
Supplay Voltage
2.7
3.3
V
VOH
Output HIGH Voltage IOH = –1.0 mA
VCC = 2.70V
2.4
V
VOL
Output LOW Voltage IOL = 2.0mA
VCC = 2.70V
0.4
V
VIH
Input HIGH Voltage
VCC= 2.7V to 3.3V
0.8*Vcc
VCC
+0.3V
V
VIL
Input LOW Voltage
VCC= 2.7V to 3.3V(F = 0)
-0.3
0.4
V
IIX
Input Leakage
Current
GND < VI < VCC
–1
+1
µA
IOZ
Output Leakage
Current
GND < VO < VCC, Output Disabled
–1
+1
µA
ICC
VCC Operating Supply
Current
f = fMAX = 1/tRC
VCC = VCCmax
IOUT = 0 mA
CMOS levels
13
17
mA
f = 1 MHz
2.0
4
mA
ISB1
Automatic CE
Power-Down
Current — CMOS
Inputs
CE > VCC−0.2V
VIN>VCC–0.2V, VIN<0.2V)
f = fMAX (Address and Data
Only),
f = 0 (OE, WE, BHE and BLE),
VCC=3.30V
Vcc = 3.3V
350
µA
ISB2
Automatic CE
Power-Down
Current — CMOS
Inputs
CE > VCC – 0.2V
VIN > VCC – 0.2V or VIN < 0.2V,
f = 0, VCC = 3.30V
Vcc = 3.3V
55
80
µA
Capacitance[10]
Parameter
Description
Test Conditions
Max.
Unit
CIN
Input Capacitance
TA = 25°C, f = 1 MHz,
VCC = VCC(typ)
6
pF
COUT
Output Capacitance
8
pF
Description
Test Conditions
Symbol
BGA
Unit
Thermal Resistance
(Junction to Ambient)
Still Air, soldered on a 3 × 4.5 inch, two-layer printed
circuit board
ΘJA
55
°C/W
Thermal Resistance
(Junction to Case)
ΘJC
16
°C/W
Note:
10. Tested initially and after any design or process changes that may affect these parameters.


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