455A Datasheet, PDF (67/148 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

455A Group
Pin configuration (top view)
P11/SEG21
40
P12/SEG22
41
P13/SEG23
42
(Note) P20/SEG24
43
P21/SEG25
44
P22/SEG26
45
P23/SEG27
46
P30/SEG28
47
P31/SEG29
48
P32/SEG30
49
P33/SEG31
50
D0
51
D1
52
M3455AG8FP
M3455AG8-XXXFP
M3455AGCFP
M3455AGC-XXXFP
26
SEG7
25
SEG6
24
SEG5
23
SEG4
22
SEG3
21
SEG2/VLC1
20
SEG1/VLC2
19
SEG0/VLC3
18
COM3
17
COM2
16
COM1
15
COM0
14
VDCE
PGM
SCLK
SDA
VPP
VSS
1KΩ
VDD
*: Connect an oscillation circuit
: QzROM pin
OUTLINE PLQP0052JA-A (52P6A-A)
Note: Note that the P20/SEG24 pin is pulled down internally by the MCU during the transition
period (that period when VPP is approximately 0.5 VDD to 1.3 VDD) when the programming
power supply (VPP) is applied to the CNVSS pin. In addition, the P20/SEG24 pin is high
impedance when VPP is approximately 1.3 VDD or greater.
Fig 64. Pin connection diagram
Rev.1.01 Feb 15, 2008 Page 67 of 146
REJ03B0224-0101