HD404829R Datasheet, PDF (139/149 Pages) Renesas Technology Corp – AS Microcomputer Incorporating a LCD controller/Driver Circuit

HD404829R Series
LCD Circuit Characteristics (HD404828R, HD4048212R, HD404829R: V_CC = 2.7 to 6.0 V, GND =
0 V, T_a = –20°C to +75°C; HD4074829: 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
Notes
Segment driver V_DS
SEG1–SEG52 —
—
0.6
V
I_PD = 3 µA
1
voltage drop
Common driver V_DC
COM1–COM4 —
—
0.3
V
I_PD = 3 µA
1
voltage drop
LCD power
R_W
supply division
resistance
—
50
(HD404828R,
HD4048212R,
HD404829R)
300
900
kΩ Between V₁ and
GND
—
100
(HD4074829)
300
900
kΩ —
LCD voltage
V_LCD
V1
2.7
—
V_CC
V—
2
Notes: 1. V_DS and V_DC are the voltage drops from power supply pins V₁, V₂, V₃, and GND to each segment
pin and each common pin, respectively.
2. When V_LCD is supplied from an external source, the following relations must be retained:
V_CC ≥ V₁ ≥ V₂ ≥ V₃ ≥ GND
A/D Converter Characteristics (HD404828R, HD4048212R, HD404829R: V_CC = 2.7 to 6.0 V, GND =
0 V, T_a = –20°C to +75°C; HD4074829: V_CC = 2.7 to 5.5 V, GND = 0 V, T_a = –20°C to +75°C, unless
otherwise specified)
Item
Analog power
voltage
Analog input
voltage
Current between
AV_CC and AV_SS
Analog input
capacitance
Resolution
Number of inputs
Symbol Pin(s)
AV_CC
AV_CC
Min
Typ
V_CC – 0.3 V_CC
AV_in
AN₀–AN₃
AV_SS
—
I _AD
—
—
—
(HD404828R,
HD4048212R,
HD404829R)
—
—
50
(HD4074829)
CA_in
AN₀–AN₃
—
15
—
—
—
—
8
8
0
—
Max
V_CC + 0.3
AV_CC
250
150
—
8
4
Absolute accuracy —
—
—
— ± 2.0
Conversion time —
Input impedance —
—
34
AN₀–AN₃
1
— 67
——
Unit Test Condition
V
—
Notes
1
V
—
µA
V_CC = AV_CC = 5.0 V
pF
—
Bit
Chan-
nel
LSB
t_cyc
MΩ
—
—
T_a = 25°C,
V_CC = 4.5–5.5 V
—
f_OSC = 1 MHz,
V_in = 0.0 V
137