Datasheet > SN65555

SN65555

更新时间： 2024-09-16 04:31:23

品牌	Logo	应用领域
德州仪器 - TI		驱动
页数	文件大小	规格书
9页	211K
描述
ELECTROLUMINESCENT COLUMIN DRIVERS

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数据手册

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SN65555 数据手册

SLDS031A – APRIL 1985 – REVISED APRIL 1993

SN75555 . . . N PACKAGE

(TOP VIEW)

Each Device Drives 32 Electrodes

90-V Output Voltage Swing Capability

Using Ramped Supply

Q17

Q16

Q18

Q19

Q20

Q21

Q22

15-mA Output Source and Sink Current

Capability

Q15

High-Speed Serially-Shifted Data Input

Totem-Pole Outputs

Q14

Q13

Q12

35 Q23

Latches on All Driver Outputs

Q11

Q24

Q10

Q25

description

Q26

The SN65555, SN75555, SN65556, and

SN75556 are monolithic BIDFET^†integrated

circuits designed to drive the column electrodes of

an electroluminescent display. The SN65556 and

SN75556 output sequence is reversed from the

SN65555 and SN75555 for ease in printed-circuit-

board layout.

Q27

Q28

Q29

Q30

Q31

Q32

OUTPUT ENABLE

DATA IN

The devices consist of a 32-bit shift register, 32

latches, and 32 output AND gates. Serial data is

entered into the shift register on the low-to-high

transition of CLOCK. When high, LATCHENABLE

transfers the shift register contents to the outputs

of the 32 latches. When OUTPUT ENABLE is

high, all Q outputs are enabled. Data must be

loaded into the latches and OUTPUT ENABLE

SERIAL OUT

CLOCK

GND

LATCH ENABLE

CC1

CC2

SN65555, SN75555 . . . FN PACKAGE

(TOP VIEW)

must be high before supply voltage V

ramped up.

CC2

1 44 43 42 41 40

Q23

Q24

Q25

Q26

Q27

Q28

Q29

Q11

Q10

Serial data output from the shift register can be

used to cascade shift registers. This output is not

affected by LATCH ENABLE or OUTPUT

ENABLE.

The SN65555 and SN65556 are characterized for

operation from –40 C to 85 C. The SN75555 and

SN75556 are characterized for operation from

0 C to 70 C.

32 Q30

31 Q31

Q32

18 19 20 21 22 23 24 25 26 27 28

NC – No internal connection

† BIDFET – Bipolar, double-diffused, N-channel and P-channel MOS transistors on same chip. This is a patented process.

4–1

POST OFFICE BOX 655303 DALLAS, TEXAS 75265

12 3 4 5 6 7...9

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