HD404328 Datasheet, PDF (85/96 Pages) Hitachi Semiconductor – 4 BIT SINGLE CHIP MICROCOMPUTER

HD404328 Series
A/D Converter Characteristics (HD404324, HD404326, HD404328: V_CC = 2.7 V to 6.0 V, AV_SS = 0.0
V, T_a = –20°C to +75°C; HD404324U, HD404326U, HD404328U: V_CC = 2.7 V to 6.0 V, AV_SS = 0.0 V,
T_a = –40 °C to +85°C; HD4074329, HD4074329U: V_CC = 2.9 V to 5.5 V, AV_SS = 0.0 V, T_a = –20°C to
+75°C; unless otherwise specified)
Item
Symbol Pin(s)
Min
Typ Max
Unit Test Conditions
Analog power
voltage
AV_CC
AV_CC
V_CC – 0.3 V_CC V_CC + 0.3 V
Analog input voltage AV_in
Current between I_AD
AV_CC and AV_SS
Analog input
CA_in
capacitance
AN₀–AN₃
—
AN₀–AN₃
AV_SS
—
—
— AV_CC
50 —
30 —
V
µA V_CC = AV_CC = 5.0 V
pF
Resolution
8
88
Bit
Number of inputs
0
—4
Cha
nnel
Absolute accuracy
—
— ±2.0
LSB
Conversion period
34
— 67
t_cyc
Analog input
impedance
AN₀–AN₃
1
——
MΩ f = 1 MHz,
V_in = 0.0 V
Note: * Operating frequency of A/D conversion f_OSC is from 1 (MHz) to 4.5 (MHz).
Note
*
Zero-Crossing Detection Circuit Characteristics
Low Sensitivity Mode (HD404324, HD404324U, HD404326, HD404326U, HD404328, HD404328U:
V_CC = 2.7 V to 6.0 V, GND = 0.0 V, T_a = 0°C to +70°C; HD4074329, HD4074329U: V_CC = 3.0 V to 5.5
V, GND = 0.0 V, T_a = 0°C to +70°C; unless otherwise specified)
Item
Zero-crossing
detection input
voltage
Zero-crossing
detection
accuracy
Symbol Pin
V_ZC
ZCD
V_AZC
Zero-crossing f_ZC
detection input
frequency
Min
Typ Max
Unit Test Conditions Note
2.0
— 3.0
V_P-P AC connection,
C = 0.1 µF
—
— ±750
mV f_ZC = 50/60 Hz Refer to
(sine wave),
figure
48
f_OSC = 4 MHz
45
— 250
Hz
83