M54HCT240/241/244 M74HCT240/241/244
OCTAL BUS BUFFER WITH 3 STATE OUTPUTS HCT240: INVERTED - HCT241/244 NON INVERTED
. . . . . . .
HIGH SPEED tPD = 13 ns (TYP.) at VCC = 5V LOW POWER DISSIPATION o ICC = 4 µA (MAX.) at TA = 25 C COMPATIBLE WITH TTL OUTPUTS VIH = 2V (MIN.) VIL = 0.8V (MAX) OUTPUT DRIVE CAPABILITY 15 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE |IOH| = IOL = 6 mA (MIN) BALANCED PROPAGATION DELAYS tPLH = tPHL PIN AND FUNCTION COMPATIBLE WITH 54/74LS240/241/244
B1R (Plastic Package)
F1R (Ceramic Package)
M1R (Micro Package)
C1R (Chip Carrier)
ORDER CODES : M54HCTXXXF1R M74HCTXXXM1R M74HCTXXXB1R M74HCTXXXC1R
DESCRIPTION The M54/74HCT240, HCT241 and HCT244 are high speed CMOS OCTAL BUS BUFFERs fabricated in silicon gate C2MOS technology. They have the same high speed performance of LSTTL combined with true CMOS low power consumption. The designer has a choise of select combination of inverting and non-inverting outputs, symmetrical G (active low output control) input, and complementary G and G inputs. Each control input governs four BUS BUFFERs. This integrated circuit has input and output PIN CONNECTION (top view)
HCT240 HCT241 HCT244
characteristics that are fully compatible with 54/74 LSTTL logic families. M54/74HCT devices are designed to directly interface HSC2MOS systems with TTL and NMOS components. They are also plug in replacements for LSTTL devices giving a reduction of power consumption. These devices are designed to be used with 3 state memory address drivers, etc. All inputs are equipped with protection circuits against static discharge and transient excess voltage.
September 1993
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M54/M74HCT240/241/244
C HIP CARRIER
HCT240 HCT241 HCT244
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION (HCT240)
PIN No 1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15, 17 18, 16, 14, 12 19 10 20 SYMBOL 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 1Y1 to 1Y4 2G GND VCC NAME AND FUNCTION Output Enable Input Data Inputs Data Outputs Data Inputs Data Outputs Output Enabel Input Ground (0V) Positive Supply Voltage
PIN DESCRIPTION (HCT241)
PIN No 1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15, 17 18, 16, 14, 12 19 10 20 SYMBOL 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 1Y1 to 1Y4 2G GND V CC NAME AND FUNCTION Output Enable Input Data Inputs Data Outputs Data Inputs Data Outputs Output Enabel Input Ground (0V) Positive Supply Voltage
PIN DESCRIPTION (HCT244)
PIN No 1 2, 4, 6, 8 9, 7, 5, 3 11, 13, 15, 17 18, 16, 14, 12 19 10 20 SYMBOL 1G 1A1 to 1A4 2Y1 to 2Y4 2A1 to 2A4 1Y1 to 1Y4 2G GND VCC NAME AND FUNCTION Output Enable Input Data Inputs Data Outputs Data Inputs Data Outputs Output Enabel Input Ground (0V) Positive Supply Voltage
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M54/M74HCT240/241/244
I EC LOGIC SYMBOLS
HCT240 HCT241 HCT244
TRUTH TABLE
INPUT G L L H
X: ”H” or ”L” Z: High impedance
OUTPUT An L H X Yn (HCT240) H L Z Yn (HCT241) L H Z Yn (HCT244) L H Z
G (HCT241) H H L
CIRCUIT SCHEMATIC (1/8 PACKAGE)
HCT240 HCT241/244
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M54/M74HCT240/241/244
A BSOLUTE MAXIMUM RATINGS
Symbol VCC VI VO IIK IOK IO ICC or IGND PD Tstg TL Supply Voltage DC Input Voltage DC Output Voltage DC Input Diode Current DC Output Diode Current DC Output Source Sink Current Per Output Pin DC VCC or Ground Current Power Dissipation Storage Temperature Lead Temperature (10 sec) Parameter Value -0.5 to +7 -0.5 to VCC + 0.5 -0.5 to VCC + 0.5 ± 20 ± 20 ± 35 ± 70 500 (*) -65 to +150 300 Unit V V V mA mA mA mA mW
o o
C C
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition isnotimplied. (*) 500 mW: ≅ 65 oC derate to 300 mW by 10mW/oC: 65 oC to 85 oC
RECOMMENDED OPERATING CONDITIONS
Symbol VCC VI VO Top tr, tf Parameter Supply Voltage Input Voltage Output Voltage Operating Temperature: M54HC Series M74HC Series Input Rise and Fall Time (VCC = 4.5 to 5.5V) Value 4.5 to 5.5 0 to VCC 0 to VCC -55 to +125 -40 to +85 0 to 500 Unit V V V C o C ns
o
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M54/M74HCT240/241/244
D C SPECIFICATIONS
Test Conditions Symbol Parameter VCC (V) 4.5 to 5.5 4.5 to 5.5 4.5 VI = IO=-20 µA VIH or IO=-6.0 mA V IL VI = IO= 20 µA VIH or IO= 6.0 mA V IL VI = VCC or GND VI = VCC or GND Per Input pin VI = 0.5V or 2.4V Other Inputs at V CC or GND 4.4 4.18 4.5 4.31 0.0 0.17 0.1 0.26 ±0.1 4 2.0 TA = 25 oC 54HC and 74HC Min. Typ. Max. 2.0 Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. Min. Max. 2.0 2.0 Unit
VIH
High Level Input Voltage Low Level Input Voltage High Level Output Voltage
V
V IL
0.8
0.8
0.8
V
V OH
4.4 4.13 0.1 0.33 ±1 40 2.9
4.4 4.10 0.1 V 0.4 ±1 80 3.0 µA µA mA V
VOL
Low Level Output Voltage
4.5
II ICC ∆ICC
Input Leakage Current Quiescent Supply Current Additional worst case supply current
5.5 5.5 5.5
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M54/M74HCT240/241/244
A C ELECTRICAL CHARACTERISTICS (C L = 50 pF, Input t r = tf = 6 ns)
Test Conditions Symbol Parameter VCC (V) 4.5 4.5 4.5 4.5 4.5 4.5 4.5 4.5 CL (pF) 50 50 150 50 150 50 150 50 RL = 1KΩ RL = 1KΩ RL = 1KΩ TA = 25 C 54HC and 74HC Min. Typ. 7 15 21 15 21 17 23 16 5 10 HCT240 HCT241/244 33 31 Max. 12 22 30 25 33 30 38 30 10
o
Value -40 to 85 oC -55 to 125 oC 74HC 54HC Min. Max. 15 28 38 31 41 38 48 38 10 Min. Max. 18 33 45 38 50 45 57 45 10
Unit
tTLH tTHL tPLH tPHL tPLH tPHL tPZL tPZH tPLZ tPHZ CIN COUT CPD (*)
Output Transition Time Propagation Delay Time Propagation Delay Time Output Enable Time Output Disable Time Input Capacitance Output Capacitance Power Dissipation Capacitance
ns ns ns ns ns ns ns ns pF pF pF
(*) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without load. (Refer to Test Circuit). Average operting current can be obtained by the following equation. ICC(opr) = CPD • VCC • fIN + ICC/8 (per circuit)
TEST CIRCUIT ICC (Opr.)
HCT240
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M54/M74HCT240/241/244
SWITCHING CHARACTERISTICS TEST WAVEFORM
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M54/M74HCT240/241/244
Plastic DIP20 (0.25) MECHANICAL DATA
mm MIN. a1 B b b1 D E e e3 F I L Z 3.3 1.34 8.5 2.54 22.86 7.1 3.93 0.130 0.053 0.254 1.39 0.45 0.25 25.4 0.335 0.100 0.900 0.280 0.155 1.65 TYP. MAX. MIN. 0.010 0.055 0.018 0.010 1.000 0.065 inch TYP. MAX.
DIM.
P001J
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M54/M74HCT240/241/244
Ceramic DIP20 MECHANICAL DATA
mm MIN. A B D E e3 F G I L M N1 P Q 7.9 2.29 0.4 1.27 0.22 0.51 0.5 22.86 2.79 0.55 1.52 0.31 1.27 0.090 0.016 0.050 0.009 0.020 3.3 1.78 0.020 0.900 0.110 0.022 0.060 0.012 0.050 TYP. MAX. 25 7.8 0.130 0.070 MIN. inch TYP. MAX. 0.984 0.307
DIM.
4° (min.), 15° (max.) 8.13 5.71 0.311 0.320 0.225
P057H
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M54/M74HCT240/241/244
SO20 MECHANICAL DATA
DIM. MIN. A a1 a2 b b1 C c1 D E e e3 F L M S 7.40 0.50 12.60 10.00 1.27 11.43 7.60 1.27 0.75 8° (max.) 0.291 0.19 13.00 10.65 0.35 0.23 0.50 45° (typ.) 0.496 0.393 0.050 0.450 0.299 0.050 0.029 0.512 0.419 0.10 mm TYP. MAX. 2.65 0.20 2.45 0.49 0.32 0.013 0.009 0.020 0.004 MIN. inch TYP. MAX. 0.104 0.007 0.096 0.019 0.012
P013L
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M54/M74HCT240/241/244
PLCC20 MECHANICAL DATA
mm MIN. A B D d1 d2 E e e3 F G M M1 1.27 1.14 7.37 1.27 5.08 0.38 0.101 0.050 0.045 9.78 8.89 4.2 2.54 0.56 8.38 0.290 0.050 0.200 0.015 0.004 TYP. MAX. 10.03 9.04 4.57 MIN. 0.385 0.350 0.165 0.100 0.022 0.330 inch TYP. MAX. 0.395 0.356 0.180
DIM.
P027A
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M54/M74HCT240/241/244
Information furnished is believed to be accurate and reliable. However, SGS-THOMSON Microelectronics assumes no responsability for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may results from its use. No license is granted by implication or otherwise under any patent or patent rights of SGS-THOMSON Microelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. SGS-THOMSON Microelectronics products are not authorized for use ascritical components in life support devices or systems without express written approval of SGS-THOMSON Microelectonics. © 1994 SGS-THOMSON Microelectronics - All Rights Reserved SGS-THOMSON Microelectronics GROUP OF COMPANIES Australia - Brazil - France - Germany - Hong Kong - Italy - Japan - Korea - Malaysia - Malta - Morocco - The Netherlands Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A
12/12
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