74ABT843PWDH PDF даташит
Спецификация 74ABT843PWDH изготовлена «NXP Semiconductors» и имеет функцию, называемую «9-bit interface latch with set and reset 3-State». |
|
Детали детали
Номер произв | 74ABT843PWDH |
Описание | 9-bit interface latch with set and reset 3-State |
Производители | NXP Semiconductors |
логотип |
14 Pages
No Preview Available ! |
INTEGRATED CIRCUITS
74ABT843
9-bit interface latch with set and reset
(3-State)
Product specification
Supersedes data of 1995 Sep 06
IC23 Data Handbook
1998 Jan 16
Philips
Semiconductors
No Preview Available ! |
Philips Semiconductors
9-bit bus interface latch with set and reset
(3-State)
Product specification
74ABT843
FEATURES
• High speed parallel latches
• Extra data width for wide address/data paths or buses carrying
parity
• Ideal where high speed, light loading, or increased fan-in are
required with MOS microprocessors
• Slim DIP 300 mil package
• Broadside pinout
• Output capability: +64mA/–32mA
• Latch-up protection exceeds 500mA per Jedec Std 17
• ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
• Power-up 3-State
• Power-up reset
DESCRIPTION
The 74ABT843 Bus interface latch is designed to eliminate the extra
packages required to buffer existing registers and provide extra data
width for wider data/address paths of buses carrying parity.
The 74ABT843 consists of nine D-type latches with 3-State outputs.
In addition to the LE and OE pins, it has a Master Reset (MR) pin
and Preset (PRE) pin. These pins are ideal for parity bus interfacing
in high performance systems. When MR is Low, the outputs are Low
if OE is Low. When MR is High, data can be entered into the latch.
When PRE is Low, the outputs are High, if OE is Low. PRE
overrides MR.
QUICK REFERENCE DATA
SYMBOL
PARAMETER
tPLH
tPHL
CIN
COUT
ICCZ
Propagation delay
Dn to Qn
Input capacitance
Output capacitance
Total supply current
CONDITIONS
Tamb = 25°C; GND = 0V
CL = 50pF; VCC = 5V
VI = 0V or VCC
Outputs disabled;
VO = 0V or VCC
Outputs disabled; VCC = 5.5V
TYPICAL
5.0
4
7
500
UNIT
ns
pF
pF
nA
ORDERING INFORMATION
PACKAGES
24-Pin Plastic DIP
24-Pin plastic SO
24-Pin Plastic SSOP Type II
24-Pin Plastic TSSOP Type I
TEMPERATURE RANGE OUTSIDE NORTH AMERICA
–40°C to +85°C
74ABT843 N
–40°C to +85°C
74ABT843 D
–40°C to +85°C
74ABT843 DB
–40°C to +85°C
74ABT843 PW
NORTH AMERICA
74ABT843 N
74ABT843 D
74ABT843 DB
74ABT843PW DH
DWG NUMBER
SOT222-1
SOT137-1
SOT340-1
SOT355-1
PIN CONFIGURATION
OE 1
D0 2
D1 3
D2 4
D3 5
D4 6
D5 7
TOP VIEW
D6 8
D7 9
D8 10
MR 11
GND 12
24 VCC
23 Q0
22 Q1
21 Q2
20 Q3
19 Q4
18 Q5
17 Q6
16 Q7
15 Q8
14 PRE
13 LE
SA00250
PIN DESCRIPTION
PIN NUMBER SYMBOL
1 OE
2, 3, 4, 5, 6,
7, 8, 9, 10
23, 22, 21, 20,
19,18, 17, 16, 15
11
D0-D8
Q0-Q8
MR
13 LE
14 PRE
12 GND
24 VCC
FUNCTION
Output enable input
(active-Low)
Data inputs
Data outputs
Master reset input (active-Low)
Latch enable input (active rising
edge)
Preset input (active-Low)
Ground (0V)
Positive supply voltage
1998 Jan 16
2 853-1620 18864
No Preview Available ! |
Philips Semiconductors
9-bit bus interface latch with set and reset
(3-State)
Product specification
74ABT843
LOGIC SYMBOL
LOGIC SYMBOL (IEEE/IEC)
2 3 4 5 6 7 8 9 10
D0 D1 D2 D3 D4 D5 D6 D7 D8
13 LE
14 PRE
11 MR
1 OE
Q0 Q1 Q2 Q3 Q4 Q5 Q6 Q7 Q8
23 22 21 20 19 18 17 16 15
SA00251
1 EN
11
R
14
S2
13
C1
2
1D
3
4
5
6
7
8
9
10
FUNCTION TABLE
INPUTS
OUTPUTS
OPERATING MODE
OE PRE MR LE Dn
Qn
LL X XX
H Preset
LH L X X
L Clear
LH H H L
LH H H H
L
H
Transparent
LH H ↓
l
LH H ↓ h
L
H
Latched
HX X X X
Z High impedance
LH H L X
NC Hold
H=
h=
L=
l=
NC=
X=
Z=
↓=
High voltage level
High voltage level one set-up time prior to the High-to-Low LE transition
Low voltage level
Low voltage level one set-up time prior to the High-to-Low LE transition
No change
Don’t care
High impedance “off” state
High-to-Low transition
23
22
21
20
19
18
17
16
15
SA00252
1998 Jan 16
3
Скачать PDF:
[ 74ABT843PWDH.PDF Даташит ]
Номер в каталоге | Описание | Производители |
74ABT843PWDH | 9-bit interface latch with set and reset 3-State | NXP Semiconductors |
Номер в каталоге | Описание | Производители |
TL431 | 100 мА, регулируемый прецизионный шунтирующий регулятор |
Unisonic Technologies |
IRF840 | 8 А, 500 В, N-канальный МОП-транзистор |
Vishay |
LM317 | Линейный стабилизатор напряжения, 1,5 А |
STMicroelectronics |
DataSheet26.com | 2020 | Контакты | Поиск |