4554 Datasheet, PDF (137/138 Pages) Renesas Technology Corp – SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER

REVISION HISTORY
4554 Group Data Sheet
Rev. Date
Description
Page
Summary
1.00 Nov. 27, 2001 –
First edition issued
2.00 Jul. 01, 2003 All pages “Preliminary Notice: This is not a final specification. Some parametric limits are
subject to change.” eliminated.
2.01 Sep.18, 2003 54 Note on voltage drop detection circuit added.
55 Table 15 Port level revised.
66 Note on voltage drop detection circuit added.
3.00 Aug. 06, 2004 All pages Words standardized: On-chip oscillator
4 Power dissipation: “Ta=25°C” added.
____________
5 Description of RESET pin revised.
29 Fig.20: Some description added.
30 Fig.23: Some description added.
34 Fig.26 : Note 9 added.
44 Some description revised.
45 Fig.31 : “DI” instruction added.
50 (5) LCD power supply circuit revised.
53 Fig.40 : State of quartz-crystal oscillator added.
57 Fig.44 : Note 5 added.
64 Fig.56: Some description added.
65 Fig.57: Some description added.
66 Note on Power Source Voltage added.