Document
HD74LVC16241
16-bit Buffers / Line Drivers with 3-state Outputs
ADE-205-073B(Z) 3rd Edition November 1995 Description
The HD74LVC16241 has sixteen buffer drivers with three state outputs in a 48 pin package. This device is a non inverting buffer and has two active low enables (1G , 4G ), high enables (2G, 3G). Each enable independently controls four buffers. 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 G H L L H: L: X: Z: High level Low level Immaterial High impedance G L H H A X H L Output Y Z H L
HD74LVC16241
Pin Arrangement
1G 1 1Y1 2 1Y2 3 GND 4 1Y3 5 1Y4 6 VCC 7 2Y1 8 2Y2 9 GND 10 2Y3 11 2Y4 12 3Y1 13 3Y2 14 GND 15 3Y3 16 3Y4 17 VCC 18 4Y1 19 4Y2 20 GND 21 4Y3 22 4Y4 23 4G 24
48 2G 47 1A1 46 1A2 45 GND 44 1A3 43 1A4 42 VCC 41 2A1 40 2A2 39 GND 38 2A3 37 2A4 36 3A1 35 3A2 34 GND 33 3A3 32 3A4 31 VCC 30 4A1 29 4A2 28 GND 27 4A3 26 4A4 25 3G
(Top view)
2
HD74LVC16241
Absolute Maximum Ratings
Item Supply voltage range 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 Rating 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, 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%
3
HD74LVC16241
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 Quiescent supply current I IN I OZ I CC ∆ I CC 0 to 5.5 5.5 5.5 3.0 to 3.6 Min 2.0 Max — Unit V V V I OH = –100 µA I OH = –12 mA Test Conditions
VCC ×0.7 — — — 0.8
VCC ×0.3 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 .