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PDF CXP844P16 Data sheet ( Hoja de datos )
| Número de pieza | CXP844P16 | |
| Descripción | CMOS 8-bit Single Chip Microcomputer | |
| Fabricantes | Sony Corporation | |
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CXP844P16
CMOS 8-bit Single Chip Microcomputer
Description
The CXP844P16 is a CMOS 8-bit single chip
microcomputer integrating on a single chip an A/D
converter, serial interface, timer/counter, time base
timer, 32kHz timer/counter, remote control reception
circuit and other servo systems besides the basic
configurations of 8-bit CPU, PROM, RAM, and I/O port.
The CXP844P16 also provides and a sleep/stop
function that enables lower power consumption.
This IC is the PROM-incorporated version of the
CXP84416 with built-in mask ROM. This provides the
additional feature of being able to write directly into
the program. Thus, it is most suitable for evaluation
use during system development and for small-
quantity production.
80 pin QFP (PIastic)
Features
• Wide-range instruction system (213 instructions) to cover various types of data.
— 16-bit arithmetic/multiplication and division/Boolean bit operation instructions
• Minimum instruction cycle
400ns at 10MHz operation
122µs at 32kHz operation
• Incorporated PROM capacity
16Kbytes
• Incorporated RAM capacity
448bytes
• Peripheral functions
— A/D converter
8-bit, 8-channel, successive approximation method
(Conversion time of 32µs/10MHz)
— Serial interface
Incorporated 8-bit, 8-stage FIFO
(Auto transfer for 1 to 8 bytes), 2 channel
— Timer
8-bit timer, 8-bit timer/counter, 19-bit time base timer,
32kHz timer/counter
— Remote control reception circuit Incorporated 6-stage FIFO 8-bit measurement counter
— PWM output for tuner
14 bits, 1 channel
• Interruption
12 factors, 12 vectors, multi-interruption possible
• Standby mode
SLEEP/STOP
• Package
80-pin plastic QFP
Structure
Silicon gate CMOS IC
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
–1–
E93908-ST
1 page  
Pin code
I/O
PG0 to PG7 I/O
PH0 to PH7 I/O
PI0/INT0
to
PI3/INT3
PI4 to PI7
EXTAL
XTAL
TEX
TX
RST
Vpp
AVREF
AVss
VDD
Vss
I/O/input
I/O
Input
Output
Input
Output
Input
Input
CXP844P16
Functions
(Port G)
8-bit I/O port. I/O can be set in a unit of single bits. Incorporation of pull-
up resistor can be set through the software in a unit of 4 bits.
(8 pins)
(Port H)
8-bit I/O port. I/O can be set in a unit of single bits. Incorporation of pull-
up resistor can be set through the software in a unit of 4 bits.
(8 pins)
(Port I)
8-bit output ports. I/O can be set in a unit of single
bits. Incorporation of pull-up resistor can be set
through the software in a unit of 4 bits.
(8 pins)
External
interruption
request inputs.
Crystal connectors for system clock oscillation. When the clock is supplied
externally, input to EXTAL; opposite phase clock should be input to XTAL.
Crystal connectors for 32kHz timer/counter clock generation circuit.
Connect a 32.768kHz crystal oscillator between TEX and TX. For usage
as event input, connect clock oscillation source to TEX, and open TX.
Low-level active, system reset.
VCC supply for writing of built-in PROM.
Under normal operating conditions, connect to VDD.
Reference voltage input for A/D converter.
A/D converter GND.
Vcc supply.
GND
–5–
5 Page 
CXP844P16
Recommended Operating Conditions
(Vss = 0V reference)
Item
Supply voltage
Symbol
VDD
Min.
4.5
3.5
2.7
Max.
5.5
5.5
5.5
Unit Remarks
High speed mode guaranteed operation range∗1
Low speed mode guaranteed operation range∗1
V
Guaranteed operation range with TEX clock
2.5 5.5
Guaranteed data hold range during STOP
Vpp
Vpp = VDD
V ∗5
VIH
0.7VDD
VDD
V ∗2
High level input voltage VIHS
0.8VDD
VDD
V Hysteresis input∗3
VIHEX VDD – 0.4 VDD + 0.3 V EXTAL∗4
VIL 0 0.3VDD V ∗2
Low level input voltage VILS
0 0.2VDD V Hysteresis input∗3
VILEX
–0.3
0.4 V EXTAL∗4
Operating temperature Topr
–10
+75 °C
∗1 High speed mode is 1/2 frequency demultiplication clock selection; low-speed mode is 1/16 frequency
demultiplication clock selection.
∗2 Value for each pin of normal input ports (PA, PB4, PB7, PC, PD, PE1, PF to PH, PI4 to PI7).
∗3 Value of the following pins: RST, CS0, CS1, SCK0, SCK1, SI0, SI1, EC, RMC, NMI, INT0, INT1, INT2,
INT3.
∗4 Specifies only during external clock input.
∗5 Vpp and VDD should be set to same voltage.
– 11 –
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| PDF Descargar | [ Datasheet CXP844P16.PDF ] | |
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