upd75238 Renesas Electronics Corporation., upd75238 Datasheet - Page 76
upd75238
Manufacturer Part Number
upd75238
Description
4 Bit Single-chip Microcomputer
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.UPD75238.pdf
(190 pages)
- Current page: 76 of 190
- Download datasheet (2Mb)
f
76
X
TPGM3
TPGM1
Frequency
divider
Note 7.81 ms at 4.19 MHz
1/2
Fig. 4-34 Block Diagram of the Timer/Pulse Generator (PWM Pulse Generation Mode)
PD75238
Fig. 4-35 Sample Configuration of D/A Conversion Using PD75238
PPO
Modulo register H (8)
PWM
signal
MODH (8)
8
PWM pulse generator
Modulo latch (14)
Switching
circuit
INTTPG
(IRQTPG set signal)
(2
15
V
/f
MODH
ref
X
= 5.46 ms: 6.0 MHz)
Modulo
register L (6)
Internal bus
MODL
7-2
Low-pass
filter
8
(6)
Note
(2)
MODL
TPGM5
Selec-
tor
V
AN
(analog voltage)
Output
buffer
TPGM7
PD75238
PPO
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