E1217X-XX-DIT Atmel, E1217X-XX-DIT Datasheet
E1217X-XX-DIT
Specifications of E1217X-XX-DIT
Related parts for E1217X-XX-DIT
E1217X-XX-DIT Summary of contents
Page 1
... Motor Fast-test Function 1. Description The e1217X is an integrated circuit in CMOS silicon gate technology for analog watches. It consists of a 32-kHz oscillator, frequency dividers down to 1/64 Hz, output pulse formers and push-pull motor drivers. Integrated capacitors are provided (select- able mask option) for tuning of the crystal. Low current consumption and high oscillator stability are enabled by an on-chip voltage regulator ...
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... OSCIN/OSCOUT (7/5) or (7/6) MOT 1 RESET TEST e1217X e1217X 3 4 Chip size 1. 1.02 mm Pad size: 112 µm x 112 µm Pad window: 100 µm x 100 µm Function Negative supply voltage Positive supply voltage Oscillator input/output Motor drive outputs Reset input Test input/output 4728B–CLOCK–08/06 ...
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... Motor Drive Output The e1217X contains two push-pull output buffers for driving bipolar stepping motors. During a motor pulse, the n-channel device of one buffer and the p-channel device of the other buffer are activated. The p-channel devices of both buffers are active (see pulses ...
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... Operating current RESET input current Motor Outputs Motor output current Motor period Motor pulse width Motor test period Oscillator Stability Start-up voltage Integrated input capacitor Integrated output capacitor Note: Typical parameters represent the statistical mean values. e1217X 4 Symbol tot T amb T stg ...
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... Load capacitance 6.2 Additional Notes recommended to connect the quartz case Capacitive coupling of TEST to OSCIN must be minimized by appropriate layout of the PCB to avoid disturbancing the oscillator. 4728B–CLOCK–08/06 Functional Test Circuit TEST 2 e1217X C OSCIN OSCOUT = 32,768 1 e1217X RESET 8 MOT1 MOT2 (by conductive epoxy ...
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... Figure 6-2. Motor Drive Outputs in Normal Mode and Motor Test TEST MOT1 MOT2 Figure 6-3. Motor Drive Outputs and RESET T < t (open) RESET t M MOT1 MOT2 e1217X 6 T < > t TIN TIN > t RIN RIN 4728B–CLOCK–08/06 ...
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... Ordering Information Table 7-1. Option List e1217X Option Motor Capacitance Cycle Pulse Test C OSCIN ( –B 2 3.9 125 –S 2 5.9 125 –T 10 3.9 125 –VA 2 4.9 62.5 –VB 2 4.9 125 –VC 40 5.9 125 –VF 2 3.9 62.5 –VH 2 3.9 62.5 –WB 2 4.9 125 – ...
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