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UPD6122 の電気的特性と機能

UPD6122のメーカーはNECです、この部品の機能は「REMOTE CONTROL TRANSMISSION CMOS IC」です。


製品の詳細 ( Datasheet PDF )

部品番号 UPD6122
部品説明 REMOTE CONTROL TRANSMISSION CMOS IC
メーカ NEC
ロゴ NEC ロゴ 




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UPD6122 Datasheet, UPD6122 PDF,ピン配置, 機能
DDAATTAA SSHHEEETET
MOS INTEGRATED CIRCUIT
µPD6121, 6122
REMOTE CONTROL TRANSMISSION CMOS IC
The µPD6121, 6122 are infrared remote control transmission ICs using the NEC transmission format that are ideally
suited for TVs, VCRs, audio equipment, air conditioners, etc. By combining external diodes and resistors, a maximum
of 65,536 custom codes can be specified. These ICs come in small packages, thus facilitating the design of light
and compact remote control transmitters.
The NEC transmission format consists of leader codes, custom codes (16 bits), and data codes (16 bits). It can
be used for various systems through decoding by a microcontroller.
*
FEATURES
Low-voltage operation: VDD = 2.0 to 3.3 V
Low current dissipation: 1 µA Max. (at standby)
Custom codes: 65,536 (set by external diodes and resistors)
Data codes:
µPD6121: 32 codes (single input), 3 codes (double input), expandable up to 64 codes through SEL pin
µPD6122: 64 codes (single input), 3 codes (double input), expandable up to 128 codes through SEL pin
µPD6121, 6122 are transmission code-compatible (NEC transmission format) with the µPD1913CNote, 1943GNote,
6102GNote, and 6120CNote.
Pin compatibility:
µPD6121G-001 is pin-compatible with the µPD1943G (However, capacitance of capacitor connected to
oscillator pin and other parameters vary)
µPD6122G-001 is pin-compatible with the µPD6102G (However, capacitance of capacitor connected to
oscillator pin and other parameters vary)
Standard products (Ver. I, Ver. II specifications)
Note Provided for maintenance purpose only
*
*
• When using this product (in NEC transmission format), please order custom codes from NEC.
• New custom codes for the µPD6121G-002, µPD6122G-002 cannot be ordered.
The information in this document is subject to change without notice.
Document No. U10114EJ6V0DS00 (6th edition)
(Previous No. IC-1813)
Date Published October 1995 P)
Printed in Japan
*The mark shows revised points.
©
11999944

1 Page





UPD6122 pdf, ピン配列
µPD6121, 6122
BLOCK DIAGRAM
OSCO
OSCI
Oscillator
Frequency divider
SEL
Timing generator
CCS
Key input circuit
VDD LMP
Output circuit
Controller
Data register
Key input/output circuit
REM
VSS
KI0 – KInNote
Note µPD6121: KI0 - KI3
µPD6122: KI0 - KI7
KI/O0 KI/O1 KI/O2 KI/O3 KI/O4 KI/O5 KI/O6 KI/O7
*
DIFFERENCES BETWEEN PRODUCTS
Item
Part number
Operating voltage
Current consumption
(at standby)
Custom codes
Data codes
No. of KI pins
No. of KI/O pins
SEL pin
Transmission format
Package
µPD6121
VDD = 2.0 to 3.3 V
1 µA MAX.
µPD6122
32 x 2
65,536 (16-bit setting)
64 x 2
48
8
Provided
NEC transmission format
20-pin plastic SOP (375 mil)
24-pin plastic SOP (375 mil)
3


3Pages


UPD6122 電子部品, 半導体
µPD6121, 6122
* 3. CUSTOM CODE (CUSTOM CODE, CUSTOM CODE’) SETTING
The custom code is set in two different ways depending on whether Ver I or Ver II specifications are employed.
Figure 3-1. Custom Code Setting
Ver I
Ver II
Higher 8 bits of custom code
Fixed by external diode bit
C0, C1, C2 ... Fixed by connecting CCS pin and either one of
pins KI/O0 to KI/O7
C3 to C7 ... Fixed by absence or presence of external pull-up
resistor for KI/O6, KI/O7
Lower 8 bits of custom code’
Fixed by external pull-up resistor bit
Fixed by external pull-up resistor (KI/O0 to
KI/O5) bit
Remark The µPD6121-001 has Ver I specifications and is pin-compatible with the µPD1943G, and the µPD6122-
001 has Ver I specifications and is pin-compatible with the µPD6102G.
If used as pin-compatible products, please note the following points.
1 Connect the SEL pin to VDD.
2 Change the capacitance of the capacitor connected to the resonator connection pin (Refer to
9. ELECTRICAL SPECIFICATIONS).
A custom code setting example is shown below.
* 3.1 Standard versions with Ver I specs. (µPD6121-001, µPD6122-001)
Each of the higher 8 bits of the custom code is set to “1” when a diode is connected between the CCS pin and
the corresponding KI/O pin, and is set to “0” when no diode is connected. If a pull-up resistor is connected to
the KI/O pin corresponding to one of the lower 8 bits of the custom code’, the bit is first set to “1”. Based on the
1’s information of the lower 8 bits of the custom code’, the corresponding bit of the higher 8 bits of the custom
code is then captured and not inverted. The non-inverted value is finally overwritten to the corresponding bit of
the lower 8 bits of the custom code’. The inverse occurs when no pull-up resistor is connected.
It follows from the above that the custom code can be set in 65,536 different ways depending on whether or not
a diode and/or pull-up resistor are present.
Please refer to Figure 3-2 Example of Custom Code Setting for Ver I Specifications (µPD6121-001, 6122-
001).
Figure 3-2. Example of Custom Code Setting for Ver I Specifications (µPD6121-001, 6122-001)
Configuration example
CCS
KI/O0 KI/O1 KI/O2 KI/O3 KI/O4 KI/O5 KI/O6 KI/O7
VDD
VDD
6

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共有リンク

Link :


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