SC28L202 Philips Semiconductors, SC28L202 Datasheet - Page 64

• Manufacturer Part Number: SC28L202
• Description: Dual universal asynchronous receiver/transmitter DUART
• Manufacturer: Philips Semiconductors

1. Parameters are valid over specified temperature range.
2. All voltage measurements are referenced to ground (GND). For testing, all inputs swing between 0.4V and 3.0V with a transition time of 5 ns
3. Test conditions for outputs: C
4. Typical values are at +25 C, typical supply voltages, and typical processing parameters.
5. Timing is illustrated and referenced to the WRN and RDN inputs. Also, CEN may be the ‘strobing’ input. CEN and RDN (also CEN and
6. Guaranteed by characterization of sample units.
7. If CEN is used as the ‘strobing’ input, the parameter defines the minimum High times between one CEN and the next. The RDN signal must
8. Minimum frequencies are not tested but are guaranteed by design.
9. Clocks for 1X mode should be symmetrical.
Philips Semiconductors
NOTES:
2000 Feb 10
Dual UART
maximum. For X1/CLK this swing is between 0.4V and 4.4V. All time measurements are referenced at input voltages of 0.8V and 2.0V and
output voltages of 0.8V and 2.0V, as appropriate.
WRN) are ORed internally. The signal asserted last initiates the cycle and the signal negated first terminates the cycle.
be negated for t RWD time to guarantee that any status register changes are valid.
L
= 150 pF, except interrupt outputs. Test conditions for interrupt outputs: C
58
L
= 50 pF, R
L
= 2.7K ohm to V
Objective specification
SC28L202
CC
.