UPD4701AGT NEC [NEC], UPD4701AGT Datasheet - Page 7
UPD4701AGT
Manufacturer Part Number
UPD4701AGT
Description
MOS INTEGRATED CIRCUIT
Manufacturer
NEC [NEC]
Datasheet
1.UPD4701AGT.pdf
(16 pages)
- Current page: 7 of 16
- Download datasheet (84Kb)
An example of a PD4701A data read is shown in Fig. 5.
* CS must be kept at “0” during the read.
Fig. 5 Example of PD4701A Data Read
X counter low byte read
Y counter low byte read
& switch status read
X counter high byte
Y counter high byte
& switch status read
Count value latch
Data bus
high impedance
Count reset
Start
End
CS = 0
RESET X = 1
RESET Y = 1
X/Y = 0
U/L = 0
X/Y = 0
U/L = 1
X/Y = 1
U/L = 0
X/Y = 1
U/L = 1
CS = 1
PD4701A
7
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