CYM74P55-66 Просмотр технического описания (PDF) - Cypress Semiconductor
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CYM74P55-66 Datasheet PDF : 7 Pages
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PRELIMINARY
Block Diagram: 5V to 3.3V Level Conversion (CYM74BP54)
5.0Volts
5VSRAM
Vcc
64BitBusSwitch
(uses7CYBUS3384)
100ohms
4.3Vzener
5%tolerance
3.3VcompliantI/O
D
B
GND
BE[2:1]
CYM74BP54
CYM74P54/55
CYM74SP54/55
74BP54–2
Logic Block Diagram - CYM74P54, CYM74P55
CLK1
CLK0
PD2
CYM74P54 TBD
CYM74P55 TBD
PD1
TBD
TBD
CYM74P55ONLY
D63-D 0
PD0
TBD
TBD
CK
D
A16-A 7
A
A6–0-A 3–0
A
WE7-WE 0
ADSP0
BE0-BE 7
8
ADSP
ADSC0
ADSC
ADV0
ADV
CE0
OE0
CS0
OE
CK
CK
D
D
A
A
A
A
BE0-BE 7 A6–1-A 3–1 BE0-BE 7
ADSP
ADSP1 ADSP
ADSC
ADSC1 ADSC
ADV
ADV1 ADV
CS0
CE1 CS0
OE
OE1 OE
CK
D
A
A
BE0-BE 7
ADSP
ADSC
ADV
CS0
OE
A17
CYM74P54(GND)
CYM74P55 (A18)
CS1 CS4 VCC GND CS1 CS4
CS1 CS4 VCC GND CS1 CS4
CS2 CS3 VCC
CS2 CS3 VCC GND CS2 CS3
GND CS2 CS3
16Kx64
16Kx64
16Kx64
16Kx64
74BP54–3
2
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