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Número de pieza | UPD17P236M3GT | |
Descripción | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROLLER | |
Fabricantes | NEC | |
Logotipo | ![]() |
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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD17P236
4-BIT SINGLE-CHIP MICROCONTROLLER
FOR SMALL GENERAL-PURPOSE INFRARED
REMOTE CONTROLLER
The µPD17P236 is a model of the µPD17236 with a one-time PROM instead of an internal mask ROM.
Since the user can write programs to the µPD17P236, it is ideal for experimental production or small-scale
production of the µPD17230, 17231, 17232, 17233, 17234, 17235, or 17236 systems.
When reading this document, also read the documents related to the µPD17230, 17231, 17232, 17233, 17234,
17235, and 17236.
Detailed functions are described in the following user's manual. Read this manual when designing your system.
µPD172×× Series User's Manual: U12795E
FEATURES
• Pin compatible with µPD17230, 17231, 17232, 17233, 17234, 17235, and 17236 (except PROM programming
function)
• Carrier generator circuit for infrared remote controller (REM output)
• 17K architecture: General-purpose register method
• Program memory (one-time PROM): 32 Kbytes (16,384 × 16)
• Data memory (RAM): 223 × 4 bits
• Low-voltage detection circuit
• Input/output of P1A0 pin, clock selection for carrier generation
Input/output of P1A0 pin
Clock (RfX) selection for carrier generation
µPD17P236M1
Output
RfX = fX/2
µPD17P236M2
Input
µPD17P236M3
Output
RfX = fX
µPD17P236M4
Input
• Supply voltage: VDD = 2.2 to 3.6 V (fX = 4 MHz: high-speed mode, 4 µs)
VDD = 3.0 to 3.6 V (fX = 8 MHz: high-speed mode, 2 µs)
APPLICATIONS
Preset remote controllers, toys, and portable systems
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. U14776EJ1V0DS00 (1st edition)
Date Published June 2000 J CP(K)
Printed in Japan
©
2000
1 page ![]() ![]() µPD17P236
• 30-pin plastic SSOP (7.62 mm (300))
µPD17P236M1MC-5A4, 17P236M2MC-5A4, 17P236M3MC-5A4, 17P236M4MC-5A4
D2
D3
VPP
(L)
(Open)
VDD
(Open)
CLK
GND
(L)
(Open)
(Open)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
30 (Open)
29 D1
28 D0
27 D7
26 D6
25 D5
24 D4
23 MD3
22 MD2
21 MD1
20 MD0
19
18
(L)
17
16
Caution Contents in parentheses indicate how to handle unused pins in PROM programming mode.
L : Connect to GND via a resistor (470 Ω) separately.
Open : Leave unconnected.
CLK
D0-D7
GND
MD0-MD3
VDD
VPP
: Clock input for PROM
: Data input/output for PROM
: Ground
: Mode select input for PROM
: Power supply
: Power supply for PROM writing
Data Sheet U14776EJ1V0DS00
5
5 Page ![]() ![]() µPD17P236
2.3 Input/Output Circuits
The equivalent input/output circuit for each µPD17P236 pin is shown below.
(1) P0A
V DD
(4) P1A
• Input mode (µPD17P236M2, 17P236M4)
Input buffer
(2) P0B, P0C, P0D
Data
Output
latch
Input buffer
• Output mode (µPD17P236M1, 17P236M3)
VDD
P-ch
data
Output
latch
(5) RESET
N-ch
VDD
Output
disable
Selector
N-ch
Input buffer
(3) P0E
Data
Pull-up
register
Data
Output
latch
Output
disable
Selector
V DD
P-ch
V DD
P-ch
N-ch
Input buffer
Reset input
P-ch
Input buffer
Schmitt trigger input with
hysteresis characteristics
N-ch
(6) INT
Input buffer
Schmitt trigger input with hysteresis
characteristics
(7) REM
Data
V DD
P-ch
Output
disable
Data Sheet U14776EJ1V0DS00
N-ch
11
11 Page |
Páginas | Total 30 Páginas | |
PDF Descargar | [ Datasheet UPD17P236M3GT.PDF ] |
Número de pieza | Descripción | Fabricantes |
UPD17P236M3GT | 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROLLER | ![]() NEC |
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