MC68HC705 MOTOROLA [Motorola, Inc], MC68HC705 Datasheet - Page 102

• Manufacturer Part Number: MC68HC705
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

EPROM/OTPROM (PROM)
9.3 EPROM/OTPROM (PROM) Programming
Technical Data
102
Designators
Reference
VR1
U1
U2
U3
U4
NMA0512S
MC145406
Device
Table 9-1. MC68HC05PGMR PCB Reference Designators
Type
MCU
MCU
2764
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
provides a schematic of the MC68HC05PGMR PCB with the reference
designators defined in
Ground
14, 20
2.5
20
22
9
Figure 9-1
EPROM/OTPROM (PROM)
1, 26, 27, 28
+5 V
40
44
16
1
for an EPROM programming flowchart.
Table
+12 V
—
—
—
9-1.
1
6
–12 V
—
—
—
8
4
V
—
—
—
3
4
PP
MC68HC705C8A — Rev. 2.0
8 K x 8-bit EPROM
40-pin DIP socket
44-lead PLCC socket
Driver/receiver
DC-DC converter
Notes
Figure 9-2
MOTOROLA