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PDF LC78212 Data sheet ( Hoja de datos )
| Número de pieza | LC78212 | |
| Descripción | Analog Function Switch | |
| Fabricantes | Sanyo Semicon Device | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de LC78212 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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Ordering number : EN4817A
CMOS LSI
LC78211, 78212, 78213
Analog Function Switch
Applications
Function switching under serial data control in amplifiers,
receivers, and other electronic equipment
Features
• Two sets of eight (or in the LC78213, seven) built-in
circuits with three switching configurations available
based on differing internal connections
• Control according to serial data sent from a micro-
processor, and easy connection to 5 V microprocessors
• Two identical products can be connected to a shared bus
due to the provision of a select pin (S).
• A reset pin that turns off all analog switches
• A ±20 V withstand voltage rating allows these products
to provide a wide dynamic range.
Package Dimensions
unit: mm
3061-DIP30S
[LC78211, 78212, 78213]
SANYO: DIP30S
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Maximum input voltage
Analog switch potential difference when on
Allowable power dissipation
Operating temperature range
Storage temperature range
Symbol
VDD max
VEE max
VI1
VI2
∆VON
Pd max
Topr
Tstg
Conditions
Ratings
VDD
VEE
DI, CL, CE, S, RES
–0.3 to +20
–20 to +0.3
–0.3 to +20
L1 to L8, R1 to R8, LCOM1 to LCOM4, RCOM1 to RCOM4 VEE – 0.3 to VDD + 0.3
With the switch on
0.5
Ta ≤ 75°C
100
–30 to +75
–40 to +125
Unit
V
V
V
V
V
mW
°C
°C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
73096HA (OT)/72994 TH (OT) No. 4817-1/6
1 page  
Pin Functions
Pin
VDD, VSS, VEE
L1 to L8, R1 to R8,
LCOM1 to LCOM4,
RCOM1 to RCOM4
CL, DI, CE
S
LC78211, 78212, 78213
I/O Internal equivalent circuit
See the block diagram.
Power supply
Pin function
Analog switch input and output
Serial data input (Schmitt buffer)
I
CL..............Clock input
DI...............Data input
CE .............Chip enable
Selection of one of two chips
The address is set to the values shown in the table below according to
the level input to the S pin.
Product
S pin
level
A0
Address
A1 A2
A3
I L0101
LC78211
H1 1 0 1
LC78212
L0011
H1 0 1 1
LC78213
L0111
H1 1 1 1
RES
I
Reset input
The states of the analog switches are undefined when power is first
applied. Setting this pin low will force all switches the off state.
Operation
1. Data Input Procedure
The LC78211, LC78212 and LC78213 are controlled by inputting specified data to the CL, DI and CE pins. The
input data consists of 12 bits, of which four bits are address and eight bits are data.
Bits correspond to the L1 to L8 and R1 to R8 analog switches, and a value of one turns the corresponding switch on,
and a value of zero turns it off.
0 .........Off
1 .........On
The address is used when the chip is connected to a shared bus. The data (address) that must be transmitted depends
on the S pin and the particular product as shown in the table below.
Product
LC78211
LC78212
LC78213
S pin
level
L
H
L
H
L
H
A0
0
1
0
1
0
1
Address
A1 A2
10
10
01
01
11
11
A3
1
1
1
1
1
1
Note: The bit for switch eight in the LC78213 is a “don’t care” bit, that is it can be either 0 or 1 without affecting
chip function. This is because the LC78213 has two sets of seven (not eight) circuits.
No. 4817-5/6
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet LC78212.PDF ] | |
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