CDP1855 데이터 시트보기 (PDF) - Intersil
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CDP1855 Datasheet PDF : 15 Pages
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CDP1855, CDP1855C
Recommended 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:
LIMITS
PARAMETER
VDD
(V)
CDP1855
MIN
MAX
CDP1855C
MIN
MAX
UNITS
DC Operating Voltage Range
-
4
10.5
4
6.5
V
Input Voltage Range
Maximum Clock Input Frequency
-
VSS
VDD
VSS
VDD
V
5
3.2
-
3.2
-
MHz
10
6.4
-
-
-
MHz
Minimum 8 x 8 Multiply (16 ÷ 8 Divide) Time
5
-
5.6
-
5.6
µs
10
-
2.8
-
-
µs
CE
RA2 RA1 RA0
1
11 12 13
REGISTER
SELECT LOGIC
SELECT CONTROL
SELECT Z
SELECT Y
SELECT X
X SEQUENCE
COUNTER
RESET OUT
SELECT STATUS
X REGISTER
LOAD
CLOCK
8
CN1
26
CN0
27
CHIP
NO.
8
SHIFT
GENERATOR 8
ADD/
SUBTRACT
8 C.O.
STATUS
REG
25 C.I.
3 CTL.
4 C.O./O.F.
Y SEQUENCE
COUNTER
RESET OUT
SHIFT Y REGISTER
LOAD RESET
8
5 YL
24 YR
Z SEQUENCE
COUNTER
RESET OUT
SHIFT Z REGISTER
LOAD RESET
8
6 ZL
23 ZR
LOAD
BUS BUS BUS BUS BUS BUS BUS BUS
76543 2 1 0
22 21 20 19 18 17 16 15
9
2
7
10
14 VSS
STB
CLEAR SHIFT
RD/WE
28 VDD
FIGURE 2. BLOCK DIAGRAM OF CDP1855 AND CDP1855C
4-49
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