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Z80C30 Datasheet(PDF) 62 Page - Zilog, Inc.

Part # Z80C30
Description  CMOS SCC Serial Communications Controller
PDF  81 Pages
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Manufacturer  ZILOG [Zilog, Inc.]
Direct Link  http://www.zilog.com
Logo ZILOG - Zilog, Inc.

Z80C30 Datasheet(HTML) 62 Page - Zilog, Inc.

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PS011706-0511
Electrical Characteristics
CMOS SCC Serial Communications Controller
Product Specification
54
48
TwRES
WR and RD Low for
Reset
145
100
75
49a Trc
e
Valid Access Recovery
Time
3.5TcPc 3.5TcPc 3.5TcPc
49b Trci
f
RD or WR Fall to PC
Fall Setup Time
0
0
0
Table 6. Z85C30 Read/Write Timing (continued)
No
Symbol
Parameter
8.5 MHz
10 MHz
16 MHz
Min
Max
Min
Max
Min
Max
Notes:
1. Parameter does not apply to Interrupt Acknowledge transactions.
2. Open-drain output, measured with open-drain test load.
3. Parameter applies to enhanced Request mode oniy (WR7’ D4 = 1).
4. Parameter is system-dependent. For any SCC in the daisy chain, TdIAi(RD) must be greater than the sum of
TdPC(IEO) for the highest priority device in the daisy chain. TsiEI(RDA) for the SCC and TdIEI(IEO) for each
device separating them in the daisy chain.
5. Parameter applies only between transactions involving the Z85C30 SL1480, if WR/RD falling edge is synchro-
nized to PCLK falling edge, then TrC = 3TcPc.
6. This specification is only applicable when Valid Access Recovery Time is less than 35 PCLK.



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