Datasheet LC78212, LC78211 Datasheet (SANYO)

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 micro­processor, 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

CMOS LSI

Ordering number : EN4817A

73096HA (OT)/72994 TH (OT) No. 4817-1/6

SANYO: DIP30S

[LC78211, 78212, 78213]

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN

Analog Function Switch

LC78211, 78212, 78213

Specifications

Absolute Maximum Ratings at Ta = 25°C

Parameter Symbol Conditions Ratings Unit

Maximum supply voltage

V

DD

max V

DD

–0.3 to +20 V

V

EE

max V

EE

–20 to +0.3 V

Maximum input voltage

V

I

1 DI, CL, CE, S, RES –0.3 to +20 V

V

I

2 L1 to L8, R1 to R8, LCOM1 to LCOM4, RCOM1 to RCOM4 VEE– 0.3 to VDD+ 0.3 V

Analog switch potential difference when on ∆V

ON

With the switch on 0.5 V
Allowable power dissipation Pd max Ta ≤ 75°C 100 mW
Operating temperature range Topr –30 to +75 °C
Storage temperature range Tstg –40 to +125 °C

Pin Assignments

Allowable Operating Ranges at Ta = 25°C, VSS= 0 V, | VDD| ≥ | VEE|

Note: * CE, CL and DI waveforms

No. 4817-2/6

LC78211, 78212, 78213

Parameter Symbol Conditions min typ max Unit

Maximum supply voltage

V

DD

VDD– VEE≥ 12 V: V

DD

6.0 18.5 V

V

EE

VDD– VEE≥ 12 V: V

EE

–18.5 0 V

Input high level voltage

V

IH

1 DI, CL, CE 4.0 18.5 V

V

IH

2 S, RES 0.7 V

DD

V

DD

V

Input low level voltage

V

IL

1 DI, CL, CE 0 0.7 V

V

IL

2 S, RES 0 0.3 V

DD

V

Analog switch input

V

IN

L1 to L8, R1 to R8, LCOM1 to LCOM4,

V

EE

V

DD

V

voltage range RCOM1 to RCOM4
Low level clock pulse width t

øL

CL 0.5 µs

High level clock pulse width t

øH

CL 0.5 µs

t

set up

CL, DI 0.5 µs

Setup time

t1* CL, CE 0.5 µs
t2* CL, CE 0.5 µs
t3* CL, CE 0.5 µs

Minimum reset pulse width t

wRESVDD

≥ 6 V: RES 1.0 µs

Hysteresis V

H

CL, CE, DI 0.3 V

Top view

Electrical Characteristics at Ta = 25°C, VSS= 0 V

Equivalent Circuit Block Diagrams

No. 4817-3/6

LC78211, 78212, 78213

Parameter Symbol Conditions min typ max Unit

I = 1 mA, V

DD

– VEE= 12 V:

R

ON

1 L1 to L8, R1 to R8, LCOM1 to LCOM4, 150 Ω

Analog switch on resistance

RCOM1 to RCOM4
I = 1 mA, VDD– VEE= 37 V:

R

ON

2 L1 to L8, R1 to R8, LCOM1 to LCOM4, 70 Ω

RCOM1 to RCOM4
VIN= 1 Vrms, f = 1 kHz, VDD– VEE= 37 V:

THD1 L1 to L8, R1 to R8, LCOM1 to LCOM4, 0.0015 0.01 %

Total harmonic distortion

RCOM1 to RCOM4
V

IN

= 0.1 Vrms, f = 1 kHz, VDD– VEE= 37 V:

THD2 L1 to L8, R1 to R8, LCOM1 to LCOM4, 0.01 0.05 %

RCOM1 to RCOM4
V

IN

= 0 dBV, f = 10 kHz, VDD– VEE= 37 V:

Feedthrough F

TH

L1 to L8, R1 to R8, LCOM1 to LCOM4, 55 dB
RCOM1 to RCOM4

VIN= 0 dBV, f = 10 kHz, VDD– VEE= 37 V:

Crosstalk CT L1 to L8, R1 to R8, LCOM1 to LCOM4, 75 dB

RCOM1 to RCOM4

Input high level current I

IH

VI= 18.5 V: DI, CL, CE, S, RES +10 µA

Input low level current I

IL

VI= 0 V: DI, CL, CE, S, RES –10 µA

Analog switch leakage current

V

I

= VEEto VEE+ 37 V:

(off state)

I

OFF

L1 to L8, R1 to R8, LCOM1 to LCOM4, –10 +10 µA
RCOM1 to RCOM4

Current drain I

DD

V

DD

1.0 mA

Continued on next page.

Continued from preceding page.

No. 4817-4/6

LC78211, 78212, 78213

Pin Functions

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.

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

LC78211, 78212, 78213

Pin I/O Internal equivalent circuit Pin function

VDD, VSS, V

EE

L1 to L8, R1 to R8,
LCOM1 to LCOM4,
RCOM1 to RCOM4

CL, DI, CE

S

RES

I

I

I

See the block diagram.

Power supply

Analog switch input and output

Serial data input (Schmitt buffer)

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.

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.

Product

S pin

Address

level

A

0

A

1

A

2

A

3

LC78211

L 0 1 0 1
H 1 1 0 1

LC78212

L 0 0 1 1
H 1 0 1 1

LC78213

L 0 1 1 1
H 1 1 1 1

Product

S pin

Address

level

A

0

A

1

A

2

A

3

LC78211

L 0 1 0 1
H 1 1 0 1

LC78212

L 0 0 1 1
H 1 0 1 1

LC78213

L 0 1 1 1
H 1 1 1 1

No. 4817-6/6

LC78211, 78212, 78213

2. DI, CL and CE Timing

Data is read in on the rising edge of CL and latched on the falling edge of CE.

3. Notes on the Reset Pin
The states of the analog switches are undefined when power is first applied. However, it is possible to use the reset
pin to force all switches to the off state by connecting an RC circuit to this pin.

4. Using a CCB Bus with Multiple ICs
The LC78211, LC78212 and LC78213 retain their prior state until they receive data with a matching address.

5. Replacing Earlier Models
Caution is required when replacing an LC7821N, LC7823N and LC7823N with an LC78211, LC78212 and
LC78213, since the S pin threshold levels differ.

6. Handling of Unused Input Pins
We recommend connecting any unused switch pin to VSSthrough a resistor of up to a few 100 kΩ to prevent damage
from static electricity.

This catalog provides information as of July, 1996. Specifications and information herein are subject to change
without notice.

■ No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace
equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of
which may directly or indirectly cause injury, death or property loss.

■ Anyone purchasing any products described or contained herein for an above-mentioned use shall:
① Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and

distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all
damages, cost and expenses associated with such use:

➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on

SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees
jointly or severally.

■ Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for
volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied
regarding its use or any infringements of intellectual property rights or other rights of third parties.