Read-Only Memories (ROMs)
CDP1835C
MAXIMUM RATING, Absolute-Maximum Values:
DC SUPPLY-VOLTAGE RANGE, (Voo)
(All voltages referenced to Vss terminal) ............ .
. .............................. , ..................... , .. -0.5 to +7 V
INPUT VOLTAGE RANGE, ALL INPUTS ........... ..
. ........... -0 5 to Voo +0 5 V
DC INPUT CURRENT, ANY ONE INPUT ............ .
. .......................................................... ~O~
POWER DISSIPATION PER PACKAGE (Po)
For TA = -40 to +60'C (PACKAGE TYPE E) ..........
.. ........................................................ 500 mW
For TA = +60 to +85'C (PACKAGE TYPE E) ................................................. Derate linearly at 12 mW/'C to 200 mW
For TA = -55 to +100'C (PACKAGE TYPE D)...............
. ........................................................ 500 mW
For TA = +100 to +125'C (PACKAGE TYPE D) ...........
. ..... Derate Linearly at 12 mW/'C to 200 mW
DEVICE DISSIPATION PER OUTPUT TRANSISTOR
For TA = FULL PACKAGE-TEMPERATURE RANGE ....................................................................... 100 mW
OPERATING-TEMPERATURE RANGE (TA)
PACKAGE TYPE 0 ......
.. .......................................................................... -55 to +125'C
PACKAGE TYPE E ................................................................................ , ................-40 to +85'C
STORAGE TEMPERATURE RANGE (T"g) ........................................................................... -65 to +150'C
LEAD TEMPERATURE (DURING SOLDERING)
At distance 1/16 ± 1/32 In (159 ± 0 79 mm) from case for 10 s max ....................................................... +265'C
OPERATING CONDITIONS at TA = FULL PACKAGE-TEMPERATURE RANGE
For maximum reliability, nominal operating conditions should be selected so that operation is always within the
following ranges'
CHARACTERISTIC
DC Operating Voltage Range
Input Voltage Range
LIMITS
CDP1835C
Min.
Max.
4 65
Vss Voo
UNITS
V
MA7
MA.
MAO
MA.
MA3
MA2
MA'
MAO
, ADDRESS
LATCH,
CONTROL
CIRCUIT
3 AND
• DECODER
SELECT
'2:048 II 8
MEMORY
ARRAY
I.17
OUTPUT
BUFFERS
"
"
13
10
BUS 7
BUS 6
BUS 5
BUS 4
aus 3
BUS 2
BUS I
BUS 0
TPA
MRO
Q---l.!- V DO
o--!-!-- Vss
OUTPUT
CONTROL
CS'
CS2
DE
92CM-31227
Fig. 2 - Functional block diagram.
_______________________________________________________________ 743