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INTEGRATED CIRCUITS
74ALVCH16843
18-bit bus-interface D-type latch (3-State)
Product specification
IC24 Data Handbook
1998 Aug 04
Philips Semiconductors
Product specification
18-bit bus interface D-type latch (3-State)
FEATURES
74ALVCH16843
PIN CONFIGURATION
• Wide supply voltage range of 1.2V to 3.6V
• Complies with JEDEC standard no. 8-1A.
• CMOS low power consumption
• Direct interface with TTL levels
• Current drive ± 24 mA at 3.0 V
• MULTIBYTETM flow-through standard pin-out architecture
• Low inductance multiple VCC and GND pins for minimum noise
and ground bounce
• All data inputs have bus hold
• Output drive capability 50Ω transmission lines @ 85°C
DESCRIPTION
The 74ALVCH16843 has two 9–bit D-type latch featuring separate
D-type inputs for each latch and 3-State outputs for bus oriented
applications. The two sections of each register are controlled
independently by the latch enable (nLE), clear (nCLR),
preset (nPRE) and output enable (nOE) control gates.
When nOE is LOW, the data in the registers appear at the outputs.
When nOE is HIGH, the outputs are in the high impedance OFF
state. Operation of the nOE input does not affect the state of the
flip-flops.
The 74ALVCH16843 has active bus hold circuitry which is provided
to hold unused or floating data inputs at a valid logic level. This
feature eliminates the need for external pull-up or pull-down
resistors.
1CLR
1
56
1OE
2
55
1Q0
3
54
1D0
GND
4
53
GND
1Q1
5
52
1D1
1Q2
6
51
1D2
VCC
7
50
VCC
1Q3
8
49
1D3
1Q4
9
48
1D4
1Q5
10
47
1D5
GND
11
46
GND
1Q6
12
45
1D6
1Q7
13
44
1D7
1Q8
14
43
1D8
2Q0
15
42
2D0
2Q1
16
41
2D1
2Q2
17
40
2D2
GND
18
39
GND
2Q3
19
38
2D3
2Q4
20
37
2D4
1LE
1PRE
2Q5
21
36
2D5
VCC
22
35
VCC
2Q6
23
34
2D6
2Q7
24
33
2D7
GND
25
32
GND
2Q8
26
31
2D8
2OE
27
30
2PRE
2CLR
28
29
2LE
SH00143
QUICK REFERENCE DATA
GND = 0V; Tamb = 25°C; tr = tf ≤ 2.5ns
PARAMETER
SYMBOL
Propagation delay
nDn to nQn
tPHL/tPLH
Propagation delay
nLE to nQn
CI
Input capacitance
CPD
Power dissipation
dissi ation capacitance
ca acitance per
er buffer
CONDITIONS
VCC = 2.5V, CL = 30pF
VCC = 3.3V, CL = 50pF
VCC = 2.5V, CL = 30pF
VCC = 3.3V, CL = 50pF
VI = GND to VCC1
TYPICAL
2.2
2.1
2.3
2.0
5.0
transparent mode
Output enabled
Output disabled
17
3
Clocked mode
Output enabled
Output disabled
19
9
UNIT
ns
ns
pF
pF
F
NOTES:
1. CPD is used to determine the dynamic power dissipation (PD in µW):
PD = CPD × VCC2 × fi + (CL × VCC2 × fo) where: fi = input frequency in MHz; CL = output load capacitance in pF;
fo = output frequency in MHz; VCC = supply voltage in V; (CL × VCC2 × fo) = sum of outputs.
ORDERING INFORMATION
PACKAGES
56-Pin Plastic Thin Shrink Small Outline (TSSOP) Type II
1998 Aug 04
TEMPERATURE
RANGE
OUTSIDE NORTH
AMERICA
NORTH AMERICA
DRAWING
NUMBER
–40°C to +85°C
74ALVCH16843 DGG
ACH16843 DGG
SOT364-1
2
853–2108 019833
Philips Semiconductors
Product specification
18-bit bus interface D-type latch (3-State)
PIN DESCRIPTION
LOGIC SYMBOL
PIN NUMBER
SYMBOL
1
1CLR
Clear input (active LOW)
2
1OE
Output enable input (active
LOW)
55
1CLR 1PRE
52
6
1LE
Latch enable input (active
HIGH)
1Q2
1D2
51
8
1Q3
1D3
49
9
1Q4
1D4
48
10
1Q5
1D5
47
12
1Q6
1D6
45
13
1Q7
1D7
44
14
1Q8
1D8
43
15
2Q0
2D0
42
16
2Q1
2D1
41
17
2Q2
2D2
40
19
2Q3
2D3
38
20
2Q4
2D4
37
21
2Q5
2D5
36
23
2Q6
2D6
34
24
2Q7
2D7
33
26
2Q8
2D8
31
GND
Data inputs
Data outputs
Ground (0V)
VCC
Positive supply voltage
Output enable input (active
LOW)
2OE
2CLR
Clear input (active LOW)
2LE
Latch enable input (active
HIGH)
2PRE
Preset input (active LOW)
42, 41, 40, 38, 37,
36, 34, 33, 31
2D0 to 2D8
Data inputs
15, 16, 17, 19, 20,
21, 23, 24, 26
2Q0 to 2Q8
Data outputs
2CLR 2PRE
28
FUNCTION TABLE
30
2OE
2LE
27
29
SH00144
INPUTS
OUTPUT
nPRE
nCLR
nOE
LE
DX
Q
L
X
L
X
X
H
H
L
L
X
X
L
H
H
L
H
L
L
H
H
L
H
H
H
H
H
L
H
X
Q0
X
H
H
X
Z
HIGH voltage level
LOW voltage level
Don’t care
High impedance “off” state
1998 Aug 04
1LE
54
29
=
=
=
=
1OE
1D1
27
X
1Q0
56
1D0
7, 22, 35, 50
H
L
X
Z
3
2
1Q1
4, 11, 18, 25,
32, 39, 46, 53
30
55
5
1Q0 to 1Q8
28
1
Preset input (active LOW)
1D0 to 1D8
3, 5, 6, 8, 9,
10, 12, 13, 14
NAME AND FUNCTION
1PRE
56
54, 52, 51, 49, 48,
47, 45, 44, 43
74ALVCH16843
3
Philips Semiconductors
Product specification
18-bit bus interface D-type latch (3-State)
LOGIC DIAGRAM
LOGIC SYMBOL (IEEE/IEC)
nD0
1OE
D
CLR
PRE
D
LE
nCLR
nPRE
nLE
nOE
nQ0
SH00146
2
VCC
To internal circuit
EN4
1PRE 56
S2
1CLR
R3
1
1LE 56
C1
2OE 27
EN8
2PRE 30
S6
2CLR 28
R7
2LE 29
C5
1D0 54
1D
2, 3, 4 ∇
3
1Q0
1D1 52
5
1Q1
1D2 51
6
1Q2
1D3 49
8
1Q3
1D4 48
9
1Q4
1D5 47
10
1Q5
1D6 45
12
1Q6
1D7 44
13
1Q7
1D8 43
14
1Q8
15
2Q0
2D1 41
16
2Q1
2D2 40
17
2Q2
2D3 38
19
2Q3
2D4 37
20
2Q4
2D5 36
21
2Q5
2D6 34
23
2Q6
2D7 33
24
2Q7
2D8 31
26
2Q8
2D0 42
BUS HOLD CIRCUIT
Data Input
74ALVCH16843
5D
6, 7, 8 ∇
SH00145
SW00044
1998 Aug 04
4
Philips Semiconductors
Product specification
18-bit bus interface D-type latch (3-State)
74ALVCH16843
RECOMMENDED OPERATING CONDITIONS
SYMBOL
VCC
PARAMETER
MIN
MAX
DC supply voltage 2.5V range (for max. speed
performance @ 30 pF output load)
2.3
2.7
DC supply voltage 3.3V range (for max. speed
performance @ 50 pF output load)
3.0
3.6
0
VCC
VI
DC Input voltage range
VO
DC output voltage range
Tamb
Operating free-air temperature range
tr, tf
Input rise and fall times
CONDITIONS
UNIT
V
V
0
VCC
V
–40
+85
°C
0
0
20
10
ns/V
VCC = 2.3 to 3.0V
VCC = 3.0 to 3.6V
ABSOLUTE MAXIMUM RATINGS
In accordance with the Absolute Maximum Rating System (IEC 134)
Voltages are referenced to GND (ground = 0V)
SYMBOL
VCC
IIK
PARAMETER
CONDITIONS
DC supply voltage
DC input diode current
VI 0
mA
–0.5 to VCC +0.5
DC output diode current
VO VCC or VO 0
VO
DC output voltage
Note 2
IO
DC output source or sink current
VO = 0 to VCC
DC VCC or GND current
Storage temperature range
Power dissipation per package
–plastic medium-shrink (SSOP)
–plastic thin-medium-shrink (TSSOP)
–50
For data inputs2
IOK
PTOT
V
–0.5 to +4.6
DC in
input
ut voltage
Tstg
UNIT
For control pins2
VI
IGND, ICC
RATING
–0.5 to +4.6
For temperature range: –40 to +125 °C
above +55°C derate linearly with 11.3 mW/K
above +55°C derate linearly with 8 mW/K
50
V
mA
–0.5 to VCC +0.5
V
50
mA
100
mA
–65 to +150
°C
850
600
mW
NOTE:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
1998 Aug 04
5
Philips Semiconductors
Product specification
18-bit bus interface D-type latch (3-State)
74ALVCH16843
DC ELECTRICAL CHARACTERISTICS
Over recommended operating conditions. Voltage are referenced to GND (ground = 0 V).
LIMITS
SYMBOL
PARAMETER
VIH
HIGH level Input voltage
VIL
LOW level Input voltage
VOH
O
HIGH level output voltage
TEST CONDITIONS
Temp = -40°C to +85°C
MIN
TYP1
VCC = 2.3 to 2.7V
1.7
1.2
VCC = 2.7 to 3.6V
2.0
1.5
UNIT
MAX
V
VCC = 2.3 to 2.7V
1.2
0.7
VCC = 2.7 to 3.6V
1.5
0.8
V
3 to 3
6V; VI = VIH or VIL; IO = –100µA
100µA
VCC = 2
2.3
3.6V;
02
VCC0.2
VCC
VCC = 2.3V; VI = VIH or VIL; IO = –6mA
VCC0.3
VCC0.08
VCC = 2.3V; VI = VIH or VIL; IO = –12mA
VCC0.6
VCC0.26
VCC = 2.7V; VI = VIH or VIL; IO = –12mA
VCC0.5
VCC0.14
VCC = 3.0V; VI = VIH or VIL; IO = –12mA
VCC0.6
VCC0.09
VCC = 3.0V; VI = VIH or VIL; IO = –24mA
VCC1.0
VCC0.28
V
VCC = 2
2.3
3 to 3
3.6V;
6V; VI = VIH or VIL; IO = 100µA
GND
0 20
0.20
V
VCC = 2.3V; VI = VIH or VIL; IO = 6mA
0.07
0.40
V
VCC = 2.3V; VI = VIH or VIL; IO = 12mA
0.15
0.70
VCC = 2.7V; VI = VIH or VIL; IO = 12mA
0.14
0.40
VCC = 3.0V; VI = VIH or VIL; IO = 24mA
0.27
0.55
Input leakage
g current
VCC = 2
2.3
3 to 3
3.6V;
6V;
VI = VCC or GND
0.1
5
µA
µ
IOZ
3-State output OFF-state current
VCC = 2.3 to 3.6V; VI = VIH or VIL;
VO = VCC or GND
0.1
10
µA
ICC
Quiescent supply current
VCC = 2.3 to 3.6V; VI = VCC or GND; IO = 0
0.2
40
µA
∆ICC
Additional quiescent supply current
VCC = 2.3V to 3.6V; VI = VCC – 0.6V; IO = 0
150
750
µA
IBHL2
Bus hold LOW sustaining current
IBHH2
Bus hold HIGH sustaining current
IBHLO2
IBHHO2
VOL
II
LOW level output voltage
VCC = 2.3V; VI = 0.7V
45
–
VCC = 3.0V; VI = 0.8V
75
150
VCC = 2.3V; VI = 1.7V
–45
VCC = 3.0V; VI = 2.0V
–75
Bus hold LOW overdrive current
VCC = 3.6V
500
µA
Bus hold HIGH overdrive current
VCC = 3.6V
–500
µA
NOTES:
1. All typical values are at Tamb = 25°C.
2. Valid for data inputs of bus hold parts.
1998 Aug 04
V
6
–175
µA
µA
Philips Semiconductors
Product specification
18-bit bus interface D-type latch (3-State)
74ALVCH16843
AC CHARACTERISTICS FOR VCC = 2.3V TO 2.7V RANGE
GND = 0V; tr = tf ≤ 2.0ns; CL = 30pF
LIMITS
SYMBOL
PARAMETER
WAVEFORM
VCC = 2.3 to 2.7V
UNIT
MIN
TYP1
MAX
Propagation delay
nDn to nQn
1, 6
1.0
2.2
4.3
Propagation delay
nLE to nQn
2, 6
1.0
2.3
4.6
Propagation delay
nPRE to nQn
1, 6
1.0
2.5
4.8
Propagation delay
nCLR to nQn
1, 6
1.0
2.5
4.8
tPZH/tPZL
3-State output enable time
nOE to nQn
5, 6
1.0
2.8
5.8
ns
tPHZ/tPLZ
3-State output disable time
nOE to nQn
5, 6
1.1
2.2
4.3
ns
Set-up time nDn to nLE
3, 6
0.5
–0.1
–
ns
Hold time nDn to nLE
3, 6
0.9
0.5
–
ns
nLE pulse width HIGH
2, 6
1.5
0.5
–
nPRE pulse width LOW
4, 6
1.5
0.5
–
nCLR pulse width LOW
4, 6
1.5
0.5
–
Recovery time nPRE to nLE
4, 6
0.5
1.1
–
Recovery time nCLR to nLE
4, 6
0.5
1.0
–
tPHL/tPLH
tSU
th
tW
tREM
ns
ns
ns
NOTE:
1. All typical values are at VCC = 3.3V and Tamb = 25°C.
AC CHARACTERISTICS FOR VCC = 3.0V TO 3.6V RANGE AND VCC = 2.7V
GND = 0V; tr = tf ≤ 2.5ns; CL = 50pF
SYMBOL
PARAMETER
WAVEFORM
LIMITS
LIMITS
VCC = 3.3 ± 0.3V
VCC = 2.7V
MIN
TYP1, 2
MAX
MIN
TYP1
MAX
UNIT
Propagation delay
nDn to nQn
1, 6
1.0
2.1
3.5
1.0
2.3
4.0
Propagation delay
nLE to nQn
2, 6
1.0
2.0
3.5
1.0
2.1
3.9
Propagation delay
nPRE to nQn
1, 6
1.0
2.2
3.8
1.0
2.6
4.5
Propagation delay
nCLR to nQn
1, 6
1.0
2.3
3.9
1.0
2.5
4.3
tPZH/tPZL
3-State output enable time
nOE to nQn
5, 6
1.0
2.5
4.4
1.0
3.0
5.3
ns
tPHZ/tPLZ
3-State output disable time
nOE to nQn
5, 6
1.3
2.6
4.0
1.3
2.8
4.4
ns
Set-up time nDn to nLE
3, 6
0.5
0.0
–
0.5
–0.3
–
ns
Hold time nDn to nLE
3, 6
0.9
0.5
–
0.9
0.5
–
ns
nLE pulse width HIGH
2, 6
1.5
0.5
–
1.5
0.5
–
nPRE pulse width LOW
4, 6
1.5
0.5
–
1.5
0.6
–
nCLR pulse width LOW
4, 6
1.5
0.5
–
1.5
0.5
–
Recovery time nPRE to nLE
4, 6
1.0
0.4
–
0.8
–0.2
–
Recovery time nCLR to nLE
4, 6
0.8
0.2
–
0.6
–0.4
–
tPHL/tPLH
tSU
th
tW
tREM
ns
NOTES:
1. All typical values are measured Tamb = 25°C.
2. Typical value is measured at VCC = 3.3V
1998 Aug 04
7
ns
ns
Philips Semiconductors
Product specification
18-bit bus interface D-type latch (3-State)
74ALVCH16843
ÉÉÉ ÉÉÉÉÉÉÉÉ
ÉÉÉ
ÉÉÉ ÉÉÉÉÉÉÉÉ
ÉÉÉ
ÉÉÉ ÉÉÉÉÉÉÉÉ
ÉÉÉ
AC WAVEFORMS FOR VCC = 2.3V TO 2.7V AND
VCC < 2.3V RANGE
VI
Dn
INPUT
VM = 0.5 V
VX = VOL + 0.15V
VY = VOH –0.15V
VOL and VOH are the typical output voltage drop that occur with the
output load.
V =V
CC
I
VM
GND
th
th
tSU
tSU
VI
LE
INPUT
VM
GND
AC WAVEFORMS FOR VCC = 3.0V TO 3.6V AND
VCC = 2.7V RANGE
NOTE: The shaded areas indicate when the input is permitted to change
for predictable output performance.
VM = 1.5 V
VX = VOL + 0.3V
VY = VOH –0.3V
VOL and VOH are the typical output voltage drop that occur with the
output load.
V = 2.7V
I
CLR, Dn
SH00149
Waveform 3. Data set-up and hold times for the Dn input to the
LE input
VI
VI
CLR, PRE
VM
PRE
VM
GND
GND
tPHL
tW(L)
tPLH
tREM
VI
VOH
Qn OUTPUT
LE
VM
VM
GND
VOL
SH00148
SH00147
Waveform 4. Clear (CLR) and preset (PRE) pulse width, the
clear (CLR) and preset (PRE) to latch (LE) removal time
Waveform 1. Data input (Dn) to output (Qn), clear input (CLR)
to output (Qn) and preset input (PRE) to output (Qn)
propagation delay
VI
VI
LE INPUT
GND
nOE INPUT
VM
GND
tW
tPHL
tPLH
tPLZ
VOH
Qn OUTPUT
VM
VM
tPZL
VCC
VM
OUTPUT
LOW-to-OFF
OFF-to-LOW
VOL
VM
VX
VOL
SH00150
Waveform 2. Latch enable input (LE) pulse width, the latch
enable input to output (Qn) propagation delay
tPHZ
tPZH
VOH
OUTPUT
HIGH-to-OFF
OFF-to-HIGH
VY
VM
GND
outputs
enabled
outputs
disabled
outputs
enabled
SH00137
Waveform 5. 3-State enable and disable times
1998 Aug 04
8
Philips Semiconductors
Product specification
18-bit bus interface D-type latch (3-State)
TEST CIRCUIT
S1
VCC
RL = 500 Ω
VO
VI
PULSE
GENERATOR
2 * VCC
Open
GND
D.U.T.
RT
RL = 500 Ω
CL
Test Circuit for switching times
DEFINITIONS
RL = Load resistor
CL = Load capacitance includes jig and probe capacitance
RT = Termination resistance should be equal to ZOUT of pulse generators.
SWITCH POSITION
TEST
tPLH/tPHL
S1
Open
tPLZ/tPZL
2 VCC
tPHZ/tPZH
GND
VCC
VI
< 2.7V
VCC
2.7–3.6V
2.7V
SV00906
Waveform 6. Load circuitry for switching times
1998 Aug 04
9
74ALVCH16843
Philips Semiconductors
Product specification
18-bit bus interface D-type latch (3-State)
TSSOP56: plastic thin shrink small outline package; 56 leads; body width 6.1mm
1998 Aug 04
10
74ALVCH16843
SOT364-1
Philips Semiconductors
Product specification
18-bit bus interface D-type latch (3-State)
NOTES
1998 Aug 04
11
74ALVCH16843
Philips Semiconductors
Product specification
18-bit bus interface D-type latch (3-State)
74ALVCH16843
Data sheet status
Data sheet
status
Product
status
Definition [1]
Objective
specification
Development
This data sheet contains the design target or goal specifications for product development.
Specification may change in any manner without notice.
Preliminary
specification
Qualification
This data sheet contains preliminary data, and supplementary data will be published at a later date.
Philips Semiconductors reserves the right to make chages at any time without notice in order to
improve design and supply the best possible product.
Product
specification
Production
This data sheet contains final specifications. Philips Semiconductors reserves the right to make
changes at any time without notice in order to improve design and supply the best possible product.
[1] Please consult the most recently issued datasheet before initiating or completing a design.
Definitions
Short-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For
detailed information see the relevant data sheet or data handbook.
Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one
or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or
at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended
periods may affect device reliability.
Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips
Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or
modification.
Disclaimers
Life support — These products are not designed for use in life support appliances, devices or systems where malfunction of these products can
reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications
do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.
Right to make changes — Philips Semiconductors reserves the right to make changes, without notice, in the products, including circuits, standard
cells, and/or software, described or contained herein in order to improve design and/or performance. Philips Semiconductors assumes no
responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these
products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless
otherwise specified.
Copyright Philips Electronics North America Corporation 1998
All rights reserved. Printed in U.S.A.
Philips Semiconductors
811 East Arques Avenue
P.O. Box 3409
Sunnyvale, California 94088–3409
Telephone 800-234-7381
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Document order number:
1998 Aug 04
12
Date of release: 07-98
9397-750-04562