MC68HC705C8A Datasheet, PDF (102/222 Pages) Motorola, Inc – HCMOS Microcontroller Unit

EPROM/OTPROM (PROM)
9.3 EPROM/OTPROM (PROM) Programming
The internal PROM can be programmed efficiently using the Motorola
MC68HC05PGMR-2 programmer board, which can be purchased from
a Motorola-authorized distributor. The user can program the
microcontroller unit (MCU) using this printed circuit board (PCB) in
conjunction with an EPROM device already programmed with user code.
Only standalone programming is discussed in this section. For more
information concerning the MC68HC05PGMR and its usages, contact a
local Motorola representative for a copy of the MC68HC05PGMR
Programmer Board User’s Manual #2, Motorola document number
MC68HC05PGMR2/D1.
Refer to Figure 9-1 for an EPROM programming flowchart. Figure 9-2
provides a schematic of the MC68HC05PGMR PCB with the reference
designators defined in Table 9-1.
Table 9-1. MC68HC05PGMR PCB Reference Designators
Reference
Designators
U1
U2
U3
U4
VR1
Device
Type
2764
MCU
MCU
MC145406
NMA0512S
Ground
14, 20
20
22
9
2.5
+5 V
1, 26, 27, 28
40
44
16
1
+12 V
—
—
—
1
6
–12 V
—
—
—
8
4
V_PP
Notes
— 8 K x 8-bit EPROM
3 40-pin DIP socket
4 44-lead PLCC socket
— Driver/receiver
— DC-DC converter
Technical Data
102
EPROM/OTPROM (PROM)
MC68HC705C8A — Rev. 2.0
MOTOROLA