CY54FCT273T, CY74FCT273T
8-BIT REGISTERS
SCCS020A – MARCH 1995 – REVISED OCTOBER 2001
D
D
D
D
D
description
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
VCC
Q7
D7
D6
Q6
Q5
D5
D4
Q4
CP
CY54FCT273T . . . L PACKAGE
(TOP VIEW)
D1
Q1
Q2
D2
D3
Q7
D
MR
Q0
D0
D1
Q1
Q2
D2
D3
Q3
GND
MR
VCC
D
CY54FCT273T . . . D PACKAGE
CY74FCT273T . . . Q OR SO PACKAGE
(TOP VIEW)
D0
Q0
D
Function, Pinout, and Drive Compatible
With FCT and F Logic
Reduced VOH (Typically = 3.3 V) Versions
of Equivalent FCT Functions
Edge-Rate Control Circuitry for
Significantly Improved Noise
Characteristics
Ioff Supports Partial-Power-Down Mode
Operation
Matched Rise and Fall Times
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
Fully Compatible With TTL Input and
Output Logic Levels
CY54FCT273T
– 32-mA Output Sink Current
– 12-mA Output Source Current
CY74FCT273T
– 64-mA Output Sink Current
– 32-mA Output Source Current
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
D7
D6
Q6
Q5
D5
Q3
GND
CP
Q4
D4
D
The ’FCT273T devices consist of eight
edge-triggered D-type flip-flops with individual
D inputs and Q outputs. The common
buffered-clock (CP) and master-reset (MR) inputs
load and reset all flip-flops simultaneously. These
devices are edge-triggered registers. The state of
each D input (one setup time before the
low-to-high clock transition) is transferred to the
corresponding flip-flop’s Q output. All outputs are
forced low by a low logic level on the MR input.
This
device
is
fully
specified
for
partial-power-down applications using Ioff. The Ioff
circuitry disables the outputs, preventing
damaging current backflow through the device
when it is powered down.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright 2001, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
1
CY54FCT273T, CY74FCT273T
8-BIT REGISTERS
SCCS020A – MARCH 1995 – REVISED OCTOBER 2001
ORDERING INFORMATION
SPEED
(ns)
PACKAGE†
TA
QSOP – Q
SOIC – SO
QSOP – Q
–40°C to 85°C
SOIC – SO
QSOP – Q
SOIC – SO
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
Tape and reel
5.8
CY74FCT273CTQCT
FCT273C
Tube
5.8
CY74FCT273CTSOC
Tape and reel
5.8
CY74FCT273CTSOCT
Tape and reel
7.2
CY74FCT273ATQCT
Tube
7.2
CY74FCT273ATSOC
Tape and reel
7.2
CY74FCT273ATSOCT
Tape and reel
13
CY74FCT273TQCT
Tube
13
CY74FCT273TSOC
Tape and reel
13
CY74FCT273TSOCT
FCT273C
FCT273A
FCT273A
FCT273
FCT273
–55°C to 125°C
LCC – L
Tube
8.3
CY54FCT273ATLMB
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
FUNCTION TABLE
INPUTS
MR
CP
D
OUTPUT
Q
OPERATING
MODE
L
X
X
L
Reset (clear)
H
↑
h
H
Load ‘1’
H
↑
l
L
Load ‘0’
H = High logic level steady state, h = High logic level one
setup time prior to low-to-high clock transition, L = Low
logic level steady state, l = Low logic level one setup time
prior to the low-to-high transition, X = Don’t care,
↑ = Low-to-high clock transition
logic diagram (positive logic)
CP
D0
D1
3
4
D2
1D
C1
1D
C1
R
D5
13
1D
C1
R
D6
14
D7
17
18
1D
C1
R
1D
C1
R
1D
C1
R
1D
C1
R
C1
R
R
1
2
Q0
2
D4
8
11
1D
MR
D3
7
5
Q1
6
Q2
POST OFFICE BOX 655303
9
Q3
12
Q4
• DALLAS, TEXAS 75265
15
Q5
16
Q6
19
Q7
CY54FCT273T, CY74FCT273T
8-BIT REGISTERS
SCCS020A – MARCH 1995 – REVISED OCTOBER 2001
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range to ground potential . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
DC input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
DC output voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
DC output current (maximum sink current/pin) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120 mA
Package thermal impedance, θJA (see Note 1): Q package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68°C/W
SO package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W
Ambient temperature range with power applied, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 135°C
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
† Stresses beyond those listed under “absolute maximum ratings” 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.
NOTE 1: The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 2)
CY54FCT273T
CY74FCT273T
MIN
NOM
MAX
MIN
NOM
MAX
4.5
5
5.5
4.75
5
5.25
UNIT
VCC
VIH
Supply voltage
VIL
IOH
Low-level input voltage
0.8
0.8
V
High-level output current
–12
–32
mA
IOL
TA
Low-level output current
32
64
mA
85
°C
High-level input voltage
2
Operating free-air temperature
–55
2
125
–40
V
V
NOTE 2: All unused inputs of the device must be held at VCC or GND to ensure proper device operation.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
3
CY54FCT273T, CY74FCT273T
8-BIT REGISTERS
SCCS020A – MARCH 1995 – REVISED OCTOBER 2001
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
VIK
VOH
CY54FCT273T
TYP† MAX
TEST CONDITIONS
VCC = 4.5 V,
VCC = 4.75 V,
IIN = –18 mA
IIN = –18 mA
VCC = 4.5 V,
IOH = –12 mA
IOH = –32 mA
VCC = 4
4.75
75 V
MIN
–0.7
–1.2
–0.7
2.4
2.4
Vhys
All inputs
II
VCC = 5.5 V,
VCC = 5.25 V,
VIN = VCC
VIN = VCC
5
IIH
VCC = 5.5 V,
VCC = 5.25 V,
VIN = 2.7 V
VIN = 2.7 V
±1
IIL
VCC = 5.5 V,
VCC = 5.25 V,
VIN = 0.5 V
VIN = 0.5 V
±1
VCC = 0 V,
VCC = 5.5 V,
VOUT = 4.5 V
VOUT = 0 V
VCC = 5.25 V,
VCC = 5.5 V,
VOUT = 0 V
VIN ≤ 0.2 V,
ICC
∆ICC
0.3
3.3
0.55
IOL = 64 mA
0.3
0.2
0.55
0.2
±1
±1
±1
–120
±1
–225
–60
VIN ≥ VCC – 0.2 V
VCC = 5.25 V,
VIN ≤ 0.2 V,
VIN ≥ VCC – 0.2 V
VCC = 5.5 V, VIN = 3.4 V§, f1 = 0, Outputs open
VCC = 5.25 V, VIN = 3.4 V§, f1 = 0, Outputs open
0.1
0.5
V
V
5
–60
V
V
2
IOH = –15 mA
IOL = 32 mA
VCC = 4.5 V,
VCC = 4.75 V,
IOS‡
–1.2
UNIT
3.3
VOL
Ioff
CY74FCT273T
TYP† MAX
MIN
–120
–225
0.1
0.2
0.5
2
0.2
2
µA
µA
µA
µA
mA
mA
mA
† Typical values are at VCC = 5 V, TA = 25°C.
‡ Not more than one output should be shorted at a time. Duration of short should not exceed one second. The use of high-speed test apparatus and/or
sample-and-hold techniques are preferable to minimize internal chip heating and more accurately reflect operational values. Otherwise, prolonged
shorting of a high output can raise the chip temperature well above normal and cause invalid readings in other parametric tests. In any sequence
of parameter tests, IOS tests should be performed last.
§ Per TTL-driven input (VIN = 3.4 V); all other inputs at VCC or GND
4
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
CY54FCT273T, CY74FCT273T
8-BIT REGISTERS
SCCS020A – MARCH 1995 – REVISED OCTOBER 2001
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted) (continued)
PARAMETER
ICCD¶
CY54FCT273T
TYP† MAX
TEST CONDITIONS
MIN
VCC = 5.5 V, Outputs open,
One bit switching at 50% duty cycle, MR = VCC,
VIN ≤ 0.2 V or VIN ≥ VCC – 0.2 V
VCC = 5.25 V, Outputs open,
One bit switching at 50% duty cycle, MR = VCC,
VIN ≤ 0.2 V or VIN ≥ VCC – 0.2 V
5V
VCC = 5
5.5
V,
f0 = 10 MHz,,
Outputs open,
MR = VCC
IC#
VCC = 5
5.25
25 V
V,
f0 = 10 MHz,,
Outputs open,
MR = VCC
One bit switching
at f1 = 2.5 MHz
at 50% duty cycle
Eight bits switching
at f1 = 2.5 MHz
at 50% duty cycle
One bit switching
at f1 = 5 MHz
at 50% duty cycle
Eight bits switching
at f1 = 5 MHz
at 50% duty cycle
0.06
CY74FCT273T
TYP† MAX
MIN
UNIT
0.12
mA/
MHz
0.06
0.12
0.7
1.4
VIN = 3.4 V or GND
VIN ≤ 0.2 V or
VIN ≥ VCC – 0.2 V
1.2
3.4
1.6
3.2||
VIN = 3.4 V or GND
3.9
12.2||
VIN ≤ 0.2 V or
VIN ≥ VCC – 0.2 V
0.7
1.4
VIN = 3.4 V or GND
VIN ≤ 0.2 V or
VIN ≥ VCC – 0.2 V
1.2
3.4
1.6
3.2||
VIN = 3.4 V or GND
VIN ≤ 0.2 V or
VIN ≥ VCC – 0.2 V
3.9
12.2||
mA
Ci
5
10
5
10
pF
Co
9
12
9
12
pF
† Typical values are at VCC = 5 V, TA = 25°C.
¶ This parameter is derived for use in total power-supply calculations.
# IC
= ICC + ∆ICC × DH × NT + ICCD (f0/2 + f1 × N1)
Where:
IC
= Total supply current
ICC = Power-supply current with CMOS input levels
∆ICC = Power-supply current for a TTL high input (VIN = 3.4 V)
DH
= Duty cycle for TTL inputs high
NT
= Number of TTL inputs at DH
ICCD = Dynamic current caused by an input transition pair (HLH or LHL)
f0
= Clock frequency for registered devices, otherwise zero
f1
= Input signal frequency
N1
= Number of inputs changing at f1
All currents are in milliamperes and all frequencies are in megahertz.
|| Values for these conditions are examples of the ICC formula.
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
5
CY54FCT273T, CY74FCT273T
8-BIT REGISTERS
SCCS020A – MARCH 1995 – REVISED OCTOBER 2001
timing requirements over recommended operating free-air temperature range (unless otherwise
noted) (see Figure 1)
CY74FCT273T
MIN
MAX
CY54FCT273AT
MIN
MAX
CY74FCT273AT
MIN
MAX
CY74FCT273CT
MIN
MAX
UNIT
CP
6
6
6
6
MR
6
6
6
6
Setup time, high or low
D before CP↑
2
2
2
2
ns
Hold time, high or low
D after CP↑
1.5
1.5
1.5
1.5
ns
Recovery time
MR after CP↑
2
2.5
2
2
ns
tw
Pulse duration
duration, high or low
tsu
th
trec
ns
switching characteristics over operating free-air temperature range (see Figure 1)
6
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
tPLH
tPHL
CP
Q
tPLH
tPHL
MR
Q
CY74FCT273T
CY54FCT273AT
CY74FCT273AT
CY74FCT273CT
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
2
13
2
8.3
2
7.2
2
5.8
2
13
2
8.3
2
7.2
2
5.8
2
13
2
8.3
2
7.2
2
6.1
2
13
2
8.3
2
7.2
2
6.1
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
UNIT
ns
ns
CY54FCT273T, CY74FCT273T
8-BIT REGISTERS
SCCS020A – MARCH 1995 – REVISED OCTOBER 2001
PARAMETER MEASUREMENT INFORMATION
7V
From Output
Under Test
From Output
Under Test
Test
Point
CL = 50 pF
(see Note A)
Open
TEST
GND
CL = 50 pF
(see Note A)
500 Ω
S1
500 Ω
S1
Open
7V
Open
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
500 Ω
LOAD CIRCUIT FOR
3-STATE OUTPUTS
LOAD CIRCUIT FOR
TOTEM-POLE OUTPUTS
3V
1.5 V
Timing Input
0V
tw
tsu
3V
1.5 V
Input
1.5 V
th
3V
1.5 V
Data Input
1.5 V
0V
0V
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
3V
1.5 V
Input
1.5 V
0V
tPLH
tPHL
1.5 V
1.5 V
VOL
tPHL
Out-of-Phase
Output
tPLZ
≈3.5 V
1.5 V
tPZH
VOH
1.5 V
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
1.5 V
0V
Output
Waveform 1
(see Note B)
tPLH
1.5 V
1.5 V
tPZL
VOH
In-Phase
Output
3V
Output
Control
Output
Waveform 2
(see Note B)
VOL + 0.3 V
VOL
tPHZ
1.5 V
VOH – 0.3 V
VOH
≈0 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
7
PACKAGE OPTION ADDENDUM
www.ti.com
10-Jun-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
5962-9221503M2A
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59629221503M2A
CY54FCT
273ATLMB
5962-9221503MRA
ACTIVE
CDIP
J
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
5962-9221503MR
A
CY54FCT273ATLMB
ACTIVE
LCCC
FK
20
1
Non-RoHS
& Green
SNPB
N / A for Pkg Type
-55 to 125
59629221503M2A
CY54FCT
273ATLMB
CY74FCT273ATQCT
ACTIVE
SSOP
DBQ
20
2500
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
FCT273A
Samples
CY74FCT273ATSOC
ACTIVE
SOIC
DW
20
25
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
FCT273A
Samples
CY74FCT273ATSOCT
ACTIVE
SOIC
DW
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
FCT273A
Samples
CY74FCT273CTQCT
ACTIVE
SSOP
DBQ
20
2500
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
FCT273C
Samples
CY74FCT273CTSOC
ACTIVE
SOIC
DW
20
25
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
FCT273C
Samples
CY74FCT273TQCT
ACTIVE
SSOP
DBQ
20
2500
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
FCT273
Samples
CY74FCT273TSOC
ACTIVE
SOIC
DW
20
25
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
FCT273
Samples
CY74FCT273TSOCT
ACTIVE
SOIC
DW
20
2000
RoHS & Green
NIPDAU
Level-1-260C-UNLIM
-40 to 85
FCT273
Samples
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Addendum-Page 1
Samples
Samples
Samples
PACKAGE OPTION ADDENDUM
www.ti.com
10-Jun-2022
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of