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CDP1877C Datasheet(PDF) 3 Page - Intersil Corporation

Part # CDP1877C
Description  Programmable Interrupt Controller (PIC)
PDF  10 Pages
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Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

CDP1877C Datasheet(HTML) 3 Page - Intersil Corporation

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Operating Conditions At TA = Full package temperature range. For maximum reliability, operating conditions should be selected so
that operation is always within the following ranges:
PARAMETER
LIMITS
UNITS
CDP1877
CDP1877C
MIN
MAX
MIN
MAX
DC Operating Voltage Range
4
10.5
4
6.5
V
Input Voltage Range
VSS
VDD
VSS
VDD
V
TPA
CS
CS
CA/AX
CA/AY
4-BIT
LATCH
TPB
MWR
MRD
DECODER
CASC
WRITE PAGE REGISTER
WRITE CONTROL REGISTER
WRITE MASK REGISTER
READ STATUS REGISTER
READ POLLING REGISTER
READ LONG BRANCH
INT
BUS 0
BUS 1
BUS 2
BUS 3
BUS 4
BUS 5
BUS 6
BUS 7
DATA
BUS
BUFFERS
IR7
IR6
IR5
IR4
IR3
IR2
IR1
IR0
INTERRUPT
LATCH/
STATUS
CONTROL REGISTER
WRITE
CONTROL
REGISTER
MWR
MRD
READ
STATUS
REGISTER
WRITE
MASK
REGISTER
EN
CLEAR
REGISTER
CLEAR
MASK
REGISTER
EN
CLEAR
PRIORITY
INTERVAL
READ POLLING
REGISTER
LOW
EN
VECTOR
UPPER BITS
EN
ADDRESS
HIGH
VECTOR
ADDRESS
WRITE
PAGE
REGISTER
READ
LONG
BRANCH
ENCODER/
VECTOR
ADDRESS
GENERATION
LONG
BRANCH
INSTRUCTION
GENERATE
LOGIC
CS
FIGURE 1. FUNCTIONAL DIAGRAM FOR CDP1877
CDP1877, CDP1877C



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