Memory Interfaces. CDP1882 Datasheet

CDP1882 Interfaces. Datasheet pdf. Equivalent


GE CDP1882
CMOS Peripherals _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __
CDP1881, CDP1881C,
CDP1882, CDP1882C
CLOCK
20 Voo
MA5
19 A8
MA'
18 A9
MA3
17 Ala
MA2
16 All
MAl
15 eso
MAO
MRO
MWR
vss
10
ffl
"" eS2
12 CS3
" CE
TOP VIEW
92CS- 3499BRI
CDP1881, CDP1881C
TERMINAL ASSIGNMENT
CMOS 6-Bit Latch and Decoder
Memory Interfaces
Features
Performs memory address latch and
decoder functions multiplexed or
non-multiplexed
Decodes up to 16 K-bytesofmemory
•• Interfaces dlfectly wIth CDP1800-
series microprocessors at
maximum clock frequency
Can replace existing CDP1866 and
CDP1867 (upward speed and
function capability)
CLOCK
MAS
MA'
MA'
MA2
MAl
MAO
IT
"ss
18 Voo
I.17 A8
A9
I.15 A 10
All
" eso
12 CST
CS2
10 m
TOP VIEW
92CS-34999
CDP1882,·CDP1882C
TERMINAL ASSIGNMENT
The RCA-CDP1881 and CDP1882 are CMOS 6-bit memory
latch and decoder circuits intended for use in CDP1800
series microprocessor systems. They can interface directly
with the multiplexed address bus of this system at maximum
clock frequency. and up to four 4K x 8-bit memories to
provide a 16K-byte memory system. With four 2K x 8-bit
memories an 8K-byte system can be decoded.
The devices are also compatible with non-multiplexed
address bus microprocessors. By connecting the clock
input to VDD, the latches are in the data-following mode and
the decoded outputs can be used in general-purpose
memory-system applications.
The COP1881 and CDP1882 are intended for use with 2K or
4K-byte RAMs and are identical except that in the CDP1882
MWJ'.! and MRO are excluded.
The CDP1881 and CDP1882 are functionally identical to the
CDP1881C and the CDP1882C. They differ in that the
COP1881 and COP1882 have a recommended operating
voltage range of 4 to 10 5 volts and their C versions have a
recommended operating voltage range of 4 to 6.5 volts.
The COP1881 and CDP1882 are supplied in 20-lead and
18-lead packages, respectively. The COP1881 is supplied
only in a dual-in-line plastic package (E suffix). The
COP1882 is supplied in dual-in-line, hermetic side-brazed
ceramic (0 suffix) and in plastic (E suffix) packages.
MAXIMUM RATINGS, Absolute-Maximum Values:
DC SUPPLY-VOLTAGE RANGE, (Voo)
(Voltage referenced to Vss terminal)
CDP1881 and CDP1882 ............................................................................................. -0.5 to +11 V
CDP1881C and CDPI882C ......................................................................... · ....... ·· ........ -0.5 to +7 V
INPUT VOL TAGE RANGE, ALL INPUTS .......................................................... ·· ...... ·.· ..... -05 to Voo +0.5 V
DC INPUT CURRENT. ANY ONE INPUT ................................................................................... ±10 mA
POWER DISSIPATION PER PACKAGE (Po)
ForTA: -40 to +60'C (PACKAGE TYPE E) .............................................................................. 500 mW
For Tf' : +60 to +85' C (PACKAGE TYPE E) ................................................. Derate Linearly at 12 mW/' C to 200 mW
For TA -55 to +loo'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 (All Package Types) ................................................... 100 mW
OPERATING-TEMPERATURE RANGE (TA):
PACKAGE TYPE D ............................................................................................... -55 to +125' C
PACKAGE TYPE E .................................................................................................-40 to +85'C
STORAGE-TEMPERATURE RANGE (Tstg) ........................................................................... -65 to +150'C
LEAD TEMPERATURE (DURING SOLDERING)
At distance 1116 ± 1/32 in. (1.59 ± 0.79 mm) from case for 10 s max ....................................................... +265'C
File Number 1367
468 _____________________________________________


CDP1882 Datasheet
Recommendation CDP1882 Datasheet
Part CDP1882
Description CMOS 6-Bit Latch and Decoder Memory Interfaces
Feature CDP1882; CMOS Peripherals _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ CDP1881, CDP1881C, CDP1882, CD.
Manufacture GE
Datasheet
Download CDP1882 Datasheet




GE CDP1882
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ CMOS Peripherals
CDP1881, CDP1881 C,
CDP1882, CDP1882C
OPERATING CONDITIONS at TA = Full Package-Temperature Range.
For maximum rellbillty, operating conditions should be selected so that operation Is always within the following ranges:
LIMITS
CHARACTERISTIC
CDP1881, CDP1882
CDP1881C, CDP1882C
UNITS
Min.
Max.
Min.
DC Operating Voltage Range
II 10.5 4
Input Voltage Range
Vss Voo Vss
STATIC ELECTRICAL CHARACTERISTICS at TA = -40 to +85°C, Voo ± 5%, Except as noted
CONDITIONS
LIMITS
Max.
6.5
Voo
V
CHARACTERISTIC
Vo VIN voo
(V) (V) (V)
Quiescent Device
Current
- 0,5 5
100 -
0, 10 10
Output Low Drive
(Sink) Current
04 0,5
5
IOL 0.5 0, 10 10
Output High Drive
4.6 0, 5
5
(Source) Current
Output Voltage
Low-Level
IOH 9.5 0, 10 10
- 0, 5 5
VOLt -
0, 10 10
Output Voltage
High-Level
Input Low
Voltage
Input High
Voltage
Input Leakage
Current
Input CapaCitance
Output Capacitance
VOHt
VIL
VIH
liN
CIN
COUT
-
-
0.5,4.5
1,9
05,4.5
1,9
Any
Input
-
-
0,5
0, 10
-
-
-
-
0, 5
0, 10
-
-
5
10
5
10
5
10
5
10
-
-
Operating Device
0, 5 0, 5
5
Current
loo1/!; 0,10 0, 10 10
Minimum Data
Retention Voltage
Data Retention
Current
VOR
lOR
Voo = VOR
Voo = 2.4 V
CDP1881
CDP1882
CDP1881C
CDP1882C
UNITS
Min. Typ." Max. Min. Typ." Max.
-
-
1.6
3.2
-1.15
-2.3
-
-
4.9
9.9
-
-
3.5
7
1
10
3.2
64
-23
-4.6
0
0
5
10
-
-
-
-
10 -
5
100 -
-
- 1.6 3.2
---
- -1.15 -2.3
--
-0.1
0.1 -
-
0
-
- 4.9 5
-- -
15 -
-
3- -
- 3.5 -
- --
50
-
-
-
-
-
0.1
-
-
-
1.5
-
-
-
- - ±1 - - ±1
- - ±2 - - -
- 5 7.5 - 5 7.5
-- 10 15
10 15
--
2-
-
2
- - 4- - -
- 2 24 - 2 2.4
pA
mA
V
pA
pF
mA
V
-- 0.01 1
0.5 5 pA
'Typical values are for TA = 25° C
tlOL = IOH = 1 pA
= =/!;Operating current is measured at 200 kHz for Voo 5 V and 400 kHz for Voo 10 V, with outputs open circuit.
(EqUivalent to tYPical CDP1800 system at 3.2 MHz, 5-V; and 6.4 MHz, 10-V).
..
____________________________________________________________ 469



GE CDP1882
CMOS Peripherals _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __
CDP1881, CDP1881 C,
CDP1882, CDP1882C
Jr-HID'J)--------{>----@ All
CLOCK )
@c VDD =
®Vss=
92CS- 35000
Fig. I - Functional diagram for the COPIBBI, COPIBBIC.
CLOCK I
Voo'@
0VSS'
92CS-35001
Fig. 2 - Functional diagram for the COPIBB2, COPIBB2C.
TRUTH TABLES for the CDP1881, CDP1881C and CDP1882, CDP1882C.
MWRA MRDA
INPUTS
CE ClK
11X
XX 1
0 X0
0 X0
0 X0
0 X0
0 X0
X0
0
X0
0
X0
0
X0
0
X0 0
ACDP1881, CDP1881C Only
X
X
1
1
1
1
0
1
1
1
1
0
MA4
X
X
0
1
0
1
X
0
1
0
1
X
MAS
X
X
0
0
1
1
X
0
0
1
1
X
--
CSO
1
1
0
1
1
1
0
1
1
1
OUTPUTS
--
CS1 CS2
11
11
11
01
10
11
PREVIOUS STATE
11
01
10
11
PREVIOUS STATE
--
CS3
1
1
1
1
1
0
1
1
1
0
1------
-
CE
X
X
X
INPUTS
ClK
1
1
0
MAO, MA1,
MA2, MA3
1
0
X
OUTPUTS
A8, A9,
A10, A11
1
0
PREVIOUS
STATE
Logic 1 =High, Logic 0 =Low, X =Don't Care
470 __________________________________________________________________







@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site (Privacy Policy & Contact)