
W78ERD2/W78ERD2A
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DUAL DPTR.............................................................................................................................. 50
TIMED-ACCESS PROTECTION.............................................................................................. 51
IN-SYSTEM PROGRAMMING (ISP) MODE ............................................................................ 53
H/W REBOOT MODE (BOOT FROM LDROM)........................................................................ 57
OPTION BITS REGISTER........................................................................................................ 58
ELECTRICAL CHARACTERISTICS......................................................................................... 60
18.1
Absolute Maximum Ratings.......................................................................................... 60
18.2
D.C. Characteristics...................................................................................................... 60
18.3
A.C. Characteristics...................................................................................................... 62
TIMING WAVEFORMS............................................................................................................. 64
TYPICAL APPLICATION CIRCUITS........................................................................................ 66
20.1
External Program Memory and Crystal ........................................................................ 66
20.2
Expanded External Data Memory and Oscillator ......................................................... 67
PACKAGE DIMENSIONS......................................................................................................... 68
APPLICATION NOTE ............................................................................................................... 70
22.1
In-System Programming (ISP) Software Examples ..................................................... 70
22.2
How to Use Programmable Counter Array................................................................... 74
REVISION HISTORY................................................................................................................ 75
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