Electronic Components Datasheet Search |
|
ATV750BL-15JI Datasheet(PDF) 9 Page - ATMEL Corporation |
|
ATV750BL-15JI Datasheet(HTML) 9 Page - ATMEL Corporation |
9 / 16 page ATV750B 9 Preload of Registered Outputs The ATV750B’s registers are provided with circuitry to allow loading of each register asynchronously with either a high or a low. This feature will simplify testing since any state can be forced into the registers to control test sequencing. A VIH level on the I/O pin will force the register high; a V IL will force it low, independent of the output polar- ity. The PRELOAD state is entered by placing a 10.25V to 10.75V signal on pin 8 on DIPs, and lead 10 on SMDs. When the clock term is pulsed high, the data on the I/O pins is placed into the register chosen by the Select Pin. Power Up Reset The registers in the ATV750Bs are designed to reset during power up. At a point delayed slightly from V CC crossing V RST, all registers will be reset to the low state. The output state will depend on the polarity of the output buffer. This feature is critical for state machine initialization. How- ever, due to the asynchronous nature of reset and the uncertainty of how V CC actually rises in the system, the fol- lowing conditions are required: 1. The V CC rise must be monotonic, 2. After reset occurs, all input and feedback setup times must be met before driving the clock terms or pin high, and 3. The clock pin, or signals from which clock terms are derived, must remain stable during t PR. Level forced on registered output pin during PRELOAD cycle Select Pin State Register #0 State after cycle Register #1 State after cycle V IH Low High X V IL Low Low X V IH High X High V IL High X Low Parameter Description Typ Max Units t PR Power-Up Reset Time 600 1000 ns V RST Power-Up Reset Voltage 3.8 4.5 V Pin Capacitance f = 1 MHz, T = 25°C (1) Typ Max Units Conditions C IN 58 pF V IN = 0V C OUT 68 pF V OUT = 0V |
Similar Part No. - ATV750BL-15JI |
|
Similar Description - ATV750BL-15JI |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |