Z85C3008VSG Zilog, Z85C3008VSG Datasheet - Page 53
Z85C3008VSG
Manufacturer Part Number
Z85C3008VSG
Description
IC 8MHZ Z8500 CMOS SCC 44-PLCC
Manufacturer
Zilog
Series
SCCr
Specifications of Z85C3008VSG
Processor Type
Z80
Features
Error Detection and Multiprotocol Support
Speed
8MHz
Voltage
5V
Mounting Type
Surface Mount
Package / Case
44-LCC (J-Lead)
Maximum Operating Temperature
+ 70 C
Minimum Operating Temperature
0 C
Mounting Style
SMD/SMT
Cpu Speed
8MHz
Digital Ic Case Style
LCC
No. Of Pins
44
Supply Voltage Range
5V
Operating Temperature Range
0°C To +70°C
Svhc
No SVHC (18-Jun-2010)
Base Number
85
Rohs Compliant
Yes
Clock Frequency
8MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
269-3932
Z85C3008VSG
Z85C3008VSG
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
Z85C3008VSG
Manufacturer:
Zilog
Quantity:
800
Company:
Part Number:
Z85C3008VSG
Manufacturer:
MAX
Quantity:
74
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SCC™/ESCC™ User’s Manual
Interfacing the SCC/ESCC
2.5 BLOCK/DMA TRANSFER (Continued)
This allows the use of a block move instruction to transfer
the transmit data. In the case of the Z80X30, /WAIT will go
active in response to /DS going active, but only if WR8 is
being accessed and a write is attempted. In all other cas-
es, /WAIT remains open-drain. In the case of the Z85X30,
/WAIT goes active in response to /WR going active, but
only if the data buffer is being accessed, either directly or
via the pointers. The /WAIT pin is released in response to
2-34
/TRxC
/WAIT
PCLK
Tx Buffer Empty
to Tx Buffer
/DS or /WR
/W//REQ
(=WAIT)
Figure 2-25. Wait On Transmit Timing
Figure 2-24. Wait On Transmit Timing
Full
the falling edge of PCLK. Details of the timing are shown
in Figure 2-25.
Care must be taken when using this function, particularly
at slow transmission speed. The /WAIT pin stays active as
long as the transmit buffer stays full, so there is a possibil-
ity that the CPU may be kept waiting for a long period.
Empty
ASYNC Modes
SYNC Modes
UM010901-06
01
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