Document
HD74LVC16541
16-bit Buffers / Line Drivers with 3-state Outputs
ADE-205-058B(Z) Rev.2 September 1995 Description
The HD74LVC16541 has sixteen buffers with three state outputs in a 48 pin package. When G1 and G 2 is low level, this drivers set up output is enable. Low voltage and high speed operation is suitable at the battery drive product (note type personal computer) and low power consumption extends the life of a battery for long time operation.
Features
• • • • • VCC = 2.0 V to 5.5 V All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V) Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C) Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C) High output current ±24 mA (@VCC = 3.0 V to 5.5 V)
Function Table
Inputs G1 L L H X H: L: X: Z: High level Low level Immaterial High impedance G2 L L X H A L H X X Output Y L H Z Z
HD74LVC16541
Pin Arrangement
1G1 1 1Y1 2 1Y2 3 GND 4 1Y3 5 1Y4 6 VCC 7 1Y5 8 1Y6 9 GND 10 1Y7 11 1Y8 12 2Y1 13 2Y2 14 GND 15 2Y3 16 2Y4 17 VCC 18 2Y5 19 2Y6 20 GND 21 2Y7 22 2Y8 23 2G1 24
48 1G2 47 1A1 46 1A2 45 GND 44 1A3 43 1A4 42 VCC 41 1A5 40 1A6 39 GND 38 1A7 37 1A8 36 2A1 35 2A2 34 GND 33 2A3 32 2A4 31 VCC 30 2A5 29 2A6 28 GND 27 2A7 26 2A8 25 2G2
(Top view)
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HD74LVC16541
Absolute Maximum Ratings
Item Supply voltage Input diode current Input voltage Output diode current Symbol VCC I IK VI I OK Ratings –0.5 to 6.0 –50 –0.5 to 6.0 –50 50 Output voltage Output current VCC, GND current / pin Storage temperature VO IO I CC or IGND Tstg –0.5 to VCC +0.5 ±50 100 –65 to +150 Unit V mA V mA mA V mA mA °C VO = –0.5 V VO = VCC +0.5 V VI = –0.5 V Conditions
Note: The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two of which may be realized at the same time.
Recommended Operating Conditions
Item Supply voltage Symbol VCC Ratings 1.5 to 5.5 2.0 to 5.5 Input / output voltage VI VO Operating temperature Output current Ta I OH 0 to 5.5 0 to V CC –40 to 85 –12 –24 I OL
*1 *2
Unit V V V V °C mA mA mA mA ns/V
Conditions Data retention At operation G, A Y
VCC = 2.7 V VCC = 3.0 V to 5.5 V VCC = 2.7 V VCC = 3.0 V to 5.5 V
12 24
*2
Input rise / fall time
t r, t f
10
Notes: 1. This item guarantees maximum limit when one input switches. Waveform : Refer to test circuit of switching characteristics. 2. duty cycle ≤ 50%
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HD74LVC16541
Electrical Characteristics
Ta = –40 to 85°C Item Input voltage Symbol VCC (V) VIH 2.7 to 3.6 4.5 to 5.5 VIL 2.7 to 3.6 4.5 to 5.5 Output voltage VOH 2.7 to 5.5 2.7 3.0 3.0 4.5 VOL 2.7 to 5.5 2.7 3.0 4.5 Input current Off state output current I IN I OZ 0 to 5.5 5.5 5.5 3.0 to 3.6 Min 2.0 VCC×0.7 — — Max — — 0.8 VCC×0.3 Unit Test Conditions V V V V V V V V V V V V V µA µA µA µA VIN = 5.5 V or GND VIN = VCC, GND VOUT = VCC or GND VIN = VCC or GND VIN = one input at(VCC–0.6)V, other inputs at V CC or GND I OL = 100 µA I OL = 12 mA I OL = 24 mA I OH = –24 mA I OH = –100 µA I OH = –12 mA
VCC –0.2 — 2.2 2.4 2.0 3.8 — — — — — — — — — — — — 0.2 0.4 0.55 0.55 ±5.0 ±10 40 500
Quiescent supply current I CC ∆ I CC
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HD74LVC16541
Switching Characteristics
Ta = –40 to 85°C Item Propagation delay time Symbol VCC (V) t PLH t PHL 2.7 3.3±0.3 5.0±0.5 Output enable time t ZH t ZL 2.7 3.3±0.3 5.0±0.5 Output disable time t HZ t LZ 2.7 3.3±0.3 5.0±0.5 Input capacitance Output capacitance CIN CO 2.7 2.7 Min — 1.5 — — 1.5 — — 1.5 — — — Typ Max Unit 4.5 3.5 2.5 5.5 4.0 3.0 4.0 3.5 2.5 3.0 7.5 6.5 5.0 9.0 8.0 6.5 8.5 7.5 6.0 — ns ns ns ns ns ns ns ns ns pF pF G Y G Y From (Input) A To (Output) Y
15.0 —
Test Circuit
VCC G1 VCC
See Function Table
Input
Output
Pulse Generator Zout = 50 Ω
A1
Y1 CL = 50 pF
500 Ω S1 450 Ω 50 Ω Scope
OPEN *1 See under table GND
G2 Symbol t PLH / t PHL t ZH/ t HZ t ZL / t LZ S1
Vcc=2.7V, 3.3±0.3V Vcc=5.0±0.5V
OPEN GND 6V
OPEN GND 2×Vcc
Notes:
1. 2.
CL includes probe and jig capacitance. A2-Y2 to A8-Y8 are identical to above load circuit.
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HD74LVC16541
Waveforms – 1
tr 90 % Input A Vref 10 % t PLH Vref 90 % Vref 10 % t PHL VOH Output Y Vref VOL Notes: 1. 2. t r = 2.5 ns, tf = 2.5 ns nput waveform : PRR = 10 MHz, duty cycle 50% tf VIH GND
Waveforms – 2
tf Input G 90 % Vref 10 % t ZL Waveform - A t ZH Waveform - B Vref Vref t HZ VOH – 0.3 V tr 90 % Vref 10 % t LZ VIH GND ≈V OH1 VOL + 0.3 V VOL VOH ≈V OL1 TEST VIH Vref VOH1 VOL1 Notes: 1. 2. 3. 4.
Vcc=2.7V, 3.3±0.3V Vcc=5.0±0.5V
2.7 V 1.5 V 3V GND
Vcc 50%Vcc Vcc GND
t r = 2.5 ns, tf = 2.5 ns Input waveform : PRR = 10 MHz, duty cycle 50% Waveform – A shows input conditions such that the output is "L" level when enable by the output control. Waveform – B shows input conditions such that the output is "H" level when enable by the output control.
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Unit: mm
12.5 12.7 Max 48 25 6.10 1 *0.21 +0.04 –0.05 0.19 +0.03 –0.05 0.50 24 0.08 M 8.10 ± 0.20 0° – 8° *0.17 ± 0.05 0.15 ± 0.04 0.13 ± 0.05 0.50 ± 0.1
1.0
0.65 Max
1.20 Max
0.10
*Dimension including the plating thickness Base material dimension
Hitachi Code JEDEC EIAJ Weight (.