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TSS400-S1 Datasheet(PDF) 2 Page - Texas Instruments |
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TSS400-S1 Datasheet(HTML) 2 Page - Texas Instruments |
2 / 27 page TSS400-S1 µPOWER PROGRAMMABLE HIGH-PRECISION SENSOR SIGNAL PROCESSOR SLMS001 – D4071, JANUARY 1993 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 2 Terminal Functions SIGNAL NAME PIN NUMBER I/O DESCRIPTION A1, A2, A3, A4 13, 11, 10, 8 I Analog input for the ADC AGND 15 Analog ground COM1, COM2, COM3, COM4 28, 27, 43, 44 O LCD commons I/O 20 I/O Communication input / output INITN 3 I Initialization. INITN is normally tied to VDD and held high. If INITN is held low for more than 10 µs, the TSS400-S1 will begin a warm start. K1, K2, K4, K8 5, 9, 12, 14 I/O 4-bit programmable input / output port KC 2 Test. This pin must be tied to VSS during normal operation. R0† 18 O EEPROM clock. Controls the EEPROM clock. R1, R2, R3, R4, R5, R6 19, 21, 22, 23, 24, 25 O Digital outputs R7† 26 O Controls EEPROM power switch Ri 7 Current source ( programming resistor connection ) S1 — S14 42 — 29 O LCD segments SVDD 6 Switchable VDD TOSCIN 17 I Oscillator input. Input connection for crystal oscillator ( 32.768 kHz ). TOSCOUT 16 O Oscillator output. Output connection for crystal oscillator ( 32.768 kHz ). VDD 4 Power supply VSS 1 Ground † Not directly accessible by the user’s program. |
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