HD404849 Datasheet, PDF (120/127 Pages) Hitachi Semiconductor – 4-Bit Single-Chip Microcomputer

HD404849 Series
A/D Converter Characteristics (HD404848/HD4048412/HD404849: V_CC = 2.7 to 6.0 V, GND = 0 V, T_a
= –20°C to +75°C; HD4074849: V_CC = 2.7 to 5.5 V, GND = 0 V, T_a = –20°C to +75°C, unless
otherwise specified)
Item
Symbol Pin(s)
Min
Typ Max
Unit
Test Condition Note
Analog power
AV_CC
AV_CC
V_CC – 0.3 V_CC V_CC + 0.3 V
—
1
voltage
Analog input
AV_in
AN₀–AN₇ AV_SS
—
AV_CC
V
—
voltage
Current between
AV_CC and AV_SS
Analog input
capacitance
I _AD
CA _in
—
—
AN₀–AN₇ —
— 200
µA
15 —
pF
V_CC = AV_CC = 5.0 V
—
Resolution
—
—
8
8
8
Bit
Number of inputs —
—
0
—8
Channel —
Absolute accuracy —
—
—
— ± 2.0 LSB
Conversion time —
—
34
— 67
Input impedance —
AN₀–AN₇ 1
——
Note: 1. Connect to V_CC when the A/D converter is not used.
t _cyc
—
MΩ
118