Z16C3516VSG Zilog, Z16C3516VSG Datasheet - Page 32

• Manufacturer Part Number: Z16C3516VSG
• Description: IC 16MHZ Z8500 CMOS ISCC 68-PLCC
• Manufacturer: Zilog
• Series: IUSC™r

Specifications of Z16C3516VSG

• Controller Type: Serial Communications Controller (SCC)
• Interface: USB
• Voltage - Supply: 4.75 V ~ 5.25 V
• Current - Supply: 50mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 68-LCC (J-Lead)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 269-4690-5; Z16C3516VSG

Z16C35ISCC™ User’s Manual
ISCC™ DMA and Ancillary Support Circuitry
Selection of the clocking options may be done anywhere in
the initialization sequence, but the final values must be se-
lected before the receiver, transmitter, baud rate genera-
tor, or DPLL are enabled to prevent problems from arbi-
trarily narrow clock signals out of the multiplexers. The
same is true of the crystal oscillator, in that the output
should be allowed to stabilize before it is used as a clock
source.
3-12
External
Crystal
Figure 3-10a. Async Transmission, 16x Clock Mode Using External Crystal
/SYNC Pin
/RTxC Pin
SCC
G
B
R
16x
Output
Also shown are the edges used by the receiver,
transmitter, baud rate generator and DPLL to sample or
send data or otherwise change state. For example, the
receiver samples data on the falling edge, but since there
is an inversion in the clock path between the /RTxC pin
and the receiver, a rising edge of the /RTxC pin samples
the data for the receiver.
TxC
RxC
/TRxC Pin
UM011001-0601