CY7C421 CYPRESS [Cypress Semiconductor], CY7C421 Datasheet - Page 2

• Manufacturer Part Number: CY7C421
• Manufacturer: CYPRESS [Cypress Semiconductor]

Logic Block Diagram
Document Number: 38-06001 Rev. *H
W
XI
R
CONTROL
CONTROL
WRITE
READ
EXPANSION
LOGIC
LOGIC
FLAG
POINTER
WRITE
BUFFERS
THREE-
STATE
DATA OUTPUTS
DATA INPUTS
RAM ARRAY
(Q 0 –Q 8 )
(D 0 –D 8 )
512 x 9
EF
FF
XO/HF
POINTER
READ
RESET
LOGIC
MR
FL/RT
CY7C421
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