Electronic Components Datasheet Search |
|
TDA8002 Datasheet(PDF) 8 Page - NXP Semiconductors |
|
TDA8002 Datasheet(HTML) 8 Page - NXP Semiconductors |
8 / 28 page 1997 Nov 04 8 Philips Semiconductors Product specification IC card interface TDA8002 Table 1 Clock circuitry definition Notes 1. X = don’t care. 2. In low-power mode. 3. fint = 32 kHz in low-power mode. MODE CLKSEL CLKDIV1 CLKDIV2 FREQUENCY OF CLK FREQUENCY OF CLKOUT HIGH LOW HIGH LOW 1 ⁄2fint 1 ⁄2fint HIGH LOW LOW LOW 1 ⁄4fxtal fxtal HIGH LOW LOW HIGH 1 ⁄2fxtal fxtal HIGH LOW HIGH HIGH STOP LOW fxtal HIGH HIGH X(1) X(1) STROBE fxtal LOW(2) X(1) X(1) X(1) STOP LOW 1 ⁄2fint(3) I/O circuitry The three I/O transceivers are identical. The state is HIGH for all I/O pins (i.e. I/O, I/OUC, AUX1, AUX1UC, AUX2 and AUX2UC). Pin I/O is referenced to VCC and pin I/OUC to VDD, thus ensuring proper operation in case VCC ≠ VDD. The first side on which a falling edge is detected becomes a master (input). An anti-latch circuitry first disables the detection of the falling edge on the other side, which becomes slave (output). After a delay time td (about 50 ns), the logic 0 present on the master side is transferred on the slave side. When the input is back to HIGH level, a current booster is turned on during the delay td on the output side and then both sides are back to their idle state, ready to detect the next logic 0 on any side. In case of a conflict, both lines may remain LOW until the software enables the lines to be HIGH. The anti-latch circuitry ensures that the lines do not remain LOW if both sides return HIGH, regardless of the prior conditions. The maximum frequency on the lines is approximately 1 MHz. Fig.6 Master and slave signals. handbook, full pagewidth td MGD703 td td I/O I/OUC conflict idle |
Similar Part No. - TDA8002 |
|
Similar Description - TDA8002 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | 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 |