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PDF CDP68EM05C4 Data sheet ( Hoja de datos )
| Número de pieza | CDP68EM05C4 | |
| Descripción | CMOS High-Performance Silicon-Gate 8-Bit Microcomputer Piggyback Emulator | |
| Fabricantes | GE | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de CDP68EM05C4 (archivo pdf) en la parte inferior de esta página. Total 4 Páginas | ||
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6805-Serles Microprocessors and Microcomputers
CDP68EM05C4
TERMINAL ASSIGNMENT
R'fSiT
...iiiQ
NC
PA7
PAS
PAA
PAl
PAa
PAl
PAO
pso
PB1
P",
ps,
P.A
P••
P••
P.7
Vss
(11
\1:,2 ~
(2)
as
27 Vcc
a. I'm!
A7 '
A, 4
2164
25 Vcc
7 EPROM 24 : :
•S
A' '
AA •
A, 7
23 A11
22 OE
10
:611 A2 :
12 '0
21 AID
20 Ci
19 DB?
DBO 11
"" DB' 1
,". DB2 13
GND 14
,.17
'8 DB6
17
16
085
0B4
15 DBS
19 CDP68EM05C4
EMULATOR
!~ ~~~1
38 OSC2
37 TeAP
3$ P07
3!i TeMP
:: PO!!
32 PO'"
31 PO!
30 PD2
29 POl
28 POO
PCO
27 PC1
26
" PC'24
a
PC>
PCA
PCO
"21
PC.
PC7
TOP VIEW
4G-Le.d Piggyback Package
CMOS High-Performance Silicon-Gate
8-Bit Microcomputer Piggyback Emulator
Features:
• All CDP68HC05C4 hardware and software features
• Un-multiplexed external address, data, and READ control lines
• Full8K byte address space available (7984 bytes available externally)
• 176 bytes of on-chip RAM, no ROM
• Direct interface to industry standard EPROMs
• 4D-lead piggyback package (1) with 28 hole socket for 2764 EPROM (2)
• Also can be used for CDP68HC05C8 emulation
The CDP68EM05C4 Emulator device, a functional equivalent
to the CDP68HC05C4 microcomputer, Is designed to permit
prototype development and preproduction of systems for
mask-programmed applications. Data and address bus, as
well as control signals are externally available.
In addition to this feature, the CDP68EM05C4 Emulator
differs from the CDP68HC05C4 in the following ways:
1) Memory locations which are occupied by ROM on the
CDP68HC05C4 are accessed as external locations with
the CDP68EM05C4 Emulator intended to interface to a
programmable ROM.
2) Mask-programmable options (CPU oscillator type and
external interrupt sense) are fixed in hardware. Four
variations are available with the following suffix for
each part: EC, ELC"ER and ELR. The nomenclature is
described below:
a) CPU oscillator = crystal/ceramic resonator-C or
resistor-R.
b) External interrupt request = negative edge and level
sensitive-EL, or edge only sensitive-E.
OSC1 OSC2
INTERNAL
PROCESSOR
CLOCK
RESET
PAO
PA1
PC"T PA'
A
ItO
PA3
LINES PA4
PA5
PAs
PA7
DATA
"0E'"G
PBO
PB1
PC"T PB'
B PB3
I/O PB4
LINES PB5
PB6
PB7
DATA
0'"
"EG
• OE .J~...,----,=-...,
• CE '--"1-='-_...1
ACCUMULATOR
A
INDEX
REGISTER
CONDITION
CODE
5 REGISTER CC
STACK
POINTER
PROGRAM
COUNTER
HIGH PCH
CPU
CONTROL
CPU
ALU
DATA
0'"
"EG
PORTD
SC'
SYSTEM
.P'
SYSTEM
PCO
PC1
PC.
PC3
PC'
PC.
PCS
PC7
PORT
C
itO
LINES
PD7
RDI(PDO)
TDOIPD1)
MISOIPD2)
MOS1IPD3)
SCK(P041
Ss(PD5)
3
*' DESIGNATES
EPROM SOCKET
ileii ~ &I::S IBID
QQCCQcac
-II DATA BUS
* ADDRESS BUS
92CS~42430
Fig. 1 - CDP68EM05C4 CMOS mIcrocomputer block diagram.
File Number 1961
_________________________________________________________________ 351
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet CDP68EM05C4.PDF ] | |
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