HE83R142 Datasheet, PDF (11/11 Pages) King blillion Electronics Co.,Ltd. – 8-BIT MICRO-CONTROLLER

KING BILLION ELECTRONICS CO., LTD
駿億電子股份有限公司
HE83R142
HE80000 SERIES
J. Important Note
1. For accessing any address large than 64KB, users must update TPP first, TPH then TPL. Only by this
order, the pre-charge circuit of ROM will work correctly. 5us waiting is necessary before LDV
instruction is executed since Data ROM is a low speed ROM. Users can not emulate this accessing
process in ICE. So 5us delay should be added by firmware.
2. LCD driving circuit must be turn off before IC goes into sleep mode.
3. Please bonds the TSTP_P, RSTP_N and PRTD[7:0] with test point on PCB (can be soldered and
probed) as you can, then KB can do some IC testing job on PCB. Please connect TSTP_P pin with
zero ohm resistor(or copper wire which can be cut on PCB) normally for good ESD result. KB can
pull low the TSTP_P pin by remove the zero ohm resistor . The following figure is an example
(Testing point with through hole).
Add zero Ohm resistor
to TSTP_P.
4. LV5 must small than 9.0 Volt. Otherwise IC may breakdown.
K. Updated Record
Version
V1.02
Date Section
Jul 2,
2002
I
Original Content
New Content
Modify Application Circuit
11
V1.02E