HD4074329S Renesas Electronics America, HD4074329S Datasheet - Page 88

• Manufacturer Part Number: HD4074329S
• Description: MCU 4-Bit HMCS400 CISC 20KB EPROM 3.3V/5V 64-Pin SDIP
• Manufacturer: Renesas Electronics America

Specifications of HD4074329S

• Package: 64SDIP
• Family Name: HMCS400
• Maximum Speed: 4.5 MHz
• Ram Size: 268 Byte
• Program Memory Size: 20 KB
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 4 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 35
• On-chip Adc: 4-chx8-bit
• Operating Temperature: -20 to 75 °C
• Number Of Timers: 3

HD404328 Series
High Sensitivity Mode (V
Item
Zero-crossing
detection input
voltage
Zero-crossing
detection accuracy
Zero-crossing
detection input
frequency
84
Internal CPU signal
Note:
AC input
The internal CPU signal is shown lagging behind the original waveform in the figure, but this is not
fixed—it could actually lead.
Symbol
V
V
f
ZC
ZC
AZC
CC
= 5.0 V, GND = 0.0 V, T
Pin
ZCD
Figure 48 Zero-Crossing Detection
1/f
ZC
Min
2.0
—
45
a
= 0 C to 70 C, unless otherwise specified)
Typ Max
—
—
—
3.0
1000
100
Unit Test Conditions
V
mV f
Hz
P-P
AC connection,
C = 0.1 F
(sine wave),
f
V
ZC
OSC
CC
= 50/60 Hz
= 5.0 V
= 4 MHz,
V
V
AZC
AZC
V
Note
Refer to
figure
48
ZC(P-P)