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Part: 74ALVCHS162830
Category:
Logic
-> Drivers
-> Registered drivers
Description: 74ALVCHS162830; 18-bit to 36-bit Address Driver With Bus Hold (3-State);; Package: SOT647-1 (TSSOP80)
Company: Philips Semiconductors
Datasheet: Download 74ALVCHS162830 datasheet File size : 67 kB
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Datasheet text preview:
INTEGRATED CIRCUITS
74ALVCHS162830 18-bit to 36-bit address driver with bus hold (3-State)
Product data File under Integrated Circuits -- ICL03 2001 Sep 07
Philips Semiconductors
Philips Semiconductors
Product data
18-bit to 36-bit address driver with bus hold (3-State)
74ALVCHS162830
FEATURES
· Output ports have equivalent 26 series resistors, so no external
resistors are required
PIN CONFIGURATION
TOP VIEW 2Y2 1Y2 GND 2Y1 1Y1 VCC A1 A2 GND 1 2 3 4 5 6 7 8 9 80 1Y3 79 2Y3 78 GND 77 1Y4 76 2Y4 75 VCC 74 1Y5 73 2Y5 72 GND 71 1Y6 70 2Y6 69 GND 68 1Y7 67 2Y7 66 VCC 65 1Y8 64 2Y8 63 GND 62 1Y9 61 2Y9 60 1Y10 59 2Y10 58 GND 57 1Y11 56 2Y11 55 VCC 54 1Y12 53 2Y12 52 GND 51 1Y13 50 2Y13 49 GND 48 1Y14 47 2Y14 46 VCC 45 1Y15 44 2Y15 43 GND 42 1Y16 41 2Y16
· Diodes on inputs clamp overshoot · ESD classification testing is done to JEDEC Standard JESD22.
Protection exceeds 2000 V HBM per method A114.
· Latch-up testing is done to JEDEC Standard JESD78, which
exceeds 100 mA.
· Bus hold on data inputs eliminates the need for external
pullup/pulldown resistors
· Packaged in thin very small-outline package (TVSOP) -- 0.4 mm
pitch
· Optimized for use with PCK953 in SDRAM module applications · Balanced ±12 mA output drive · Low noise, low skew
DESCRIPTION
The ALVCHS162830 address driver is designed for 2.3 V to 3.6 V VCC operation. Diodes to VCC have been added on the inputs to clamp overshoot. The bus hold feature retains the inputs' last state whenever the input bus goes to high impedance. This prevents floating inputs and eliminates the need for pull up or pull down resistors. The outputs, which are designed to sink up to 12 mA, include equivalent 26 series resistors to reduce overshoot and undershoot. To ensure the high-impedance state during power up or power down, the output-enable (OE) input should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver. The 74ALVCHS162830 is characterized for operation from 40 to +85 °C.
A3 10 A4 11 GND 12 A5 13 A6 14 VCC 15 A7 16 A8 17 GND 18 A9 19 OE1 20 OE2 21 A10 22 GND 23 A11 24 A12 25 VCC 26 A13 27 A14 28 GND 29 A15 30
FUNCTION TABLE
Inputs OE1 L L H H L L H OE2 H H L L L L H A H L H L H L X H L Z Z H L Z Outputs 1Yn 2Yn Z Z H L H L Z
A16 31 GND 32 A17 33 A18 34 VCC 35 2Y18 36 1Y18 37 GND 38 2Y17 39 1Y17 40
SW00723
ORDERING INFORMATION
PACKAGES 80-pin plastic thin very small outline (TVSOP) TEMPERATURE RANGE 40 to +85 °C ORDER CODE 74ALVCHS162830DGB DWG NUMBER SOT647-1
2001 Sep 07
2
853-2279 27052
Philips Semiconductors
Product data
18-bit to 36-bit address driver with bus hold (3-State)
74ALVCHS162830
LOGIC DIAGRAM (POSITIVE LOGIC)
VCC
PIN DESCRIPTION
PIN(S) 6, 15, 26, 35, 46, 55, 66, 75 7, 8, 10, 11, 13, 14, 16, 17, 19, 22, 24, 25, 27, 28, 30, 31, 33, 34 SYMBOL VCC An 1Yn, 2Yn FUNCTION Supply voltage Inputs Outputs
OE2
21 VCC
OE1
20 VCC 5 1Y1
1, 2, 4, 5, 36, 37, 39, 40, 41, 42, 44, 45, 47, 48, 50, 51, 53, 54, 56, 57, 59, 60, 61, 62, 64, 65, 67, 68, 70, 71, 73, 74, 76, 77, 79, 80 20, 21 3, 9, 12, 18, 23, 29, 32, 38, 43, 49, 52, 58, 63, 69, 72, 78
OE1, OE2 GND
Output enable Ground
A1
7 4 2Y1
to 17 other channels
SW00724
ABSOLUTE MAXIMUM RATINGS
Over recommended operating free-air temperature range (unless otherwise noted).1 SYMBOL VCC VI VO IIK IOK IO ICC, IGND JA Tstg PARAMETER Supply voltage range Input voltage range Output voltage range Input clamp current Output clamp current Continuous output current Continuous current through each VCC or GND Package thermal impedance Storage temperature range See Note 4 See Note 2 See Notes 2 and 3 VI < 0 VO < 0 CONDITIONS RATING 0.5 to +4.6 0.5 to +4.6 0.5 to VCC +0.5 50 50 "50 "100 106 65 to +150 UNIT V V V mA mA mA mA °C/W °C
NOTES: 1. 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. 2. The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed. 3. This value is limited to 4.6 V maximum. 4. The package thermal impedance is calculated in accordance with JESD 51.
2001 Sep 07
3
Philips Semiconductors
Product data
18-bit to 36-bit address driver with bus hold (3-State)
74ALVCHS162830
RECOMMENDED OPERATING CONDITIONS
All unused control inputs of the device must be held at VCC or GND to ensure proper device operation. LIMITS SYMBOL VCC VIH Supply voltage High-level input voltage input voltage VCC = 2.3 V to 2.7 V VCC = 2.7 V to 3.6 V Low-level input voltage input voltage Input voltage Output voltage VCC = 2.3 V IOH High-level output current VCC = 2.7 V VCC = 3 V VCC = 2.3 V IOL t/v Tamb Low-level output current VCC = 2.7 V VCC = 3 V Input transition rise or fall rate Operating free-air temperature 40 VCC = 2.3 V to 2.7 V VCC = 2.7 V to 3.6 V 0 0 PARAMETER CONDITIONS MIN 2.3 1.7 V 2 0.7 V 0.8 VCC VCC 6 8 12 6 8 12 10 +85 ns/V °C mA mA V V MAX 3.6 V UNIT
VIL VI VO
2001 Sep 07
4
Philips Semiconductors
Product data
18-bit to 36-bit address driver with bus hold (3-State)
74ALVCHS162830
ELECTRICAL CHARACTERISTICS
Over recommended operating free-air temperature range (unless otherwise noted). LIMITS SYMBOL VIK PARAMETER II = 18 mA II = 18 mA IOH = 100 µA IOH = 4 mA, VIH = 1.7 V VOH IOH = 6 mA 6 mA IOH = 8 mA, VIH = 2 V IOH = 12 mA, VIH = 2 V IOL = 100 µA IOL = 4 mA, VIL = 0.7 V VOL IOL = 6 mA mA IOL = 8 mA, VIL = 0.8 V IOL = 12 mA, VIL = 0.8 V II VI = VCC or GND VI = 0.7 V VI = 1.7 V II(hold) VI = 0.8 V VI = 2 V VI = 0 to 3.6 IOZ ICC ICC Control inputs Ci Co Data inputs Outputs VI = VCC or GND or GND VO = VCC or GND 3.3 V 7.64 3.3 V 3.12 pF V2 VIL = 0.7 V VIL = 0.8 V VIH = 1.7 V VIH = 2 V TEST CONDITIONS VCC 2.3 V 2.3 V 2.3 V to 3.6 V 2.3 V 2.3 V 3V 2.7 V 3V 2.3 V to 3.6 V 2.3 V 2.3 V 3V 2.7 V 3V 3.6 V 2.3 V 2.3 V 3V 3V 3.6 V 3.6 V 3.6 V 3 V to 3.6 V 3.5 pF 45 45 75 75 ±500 ±10 40 750 µA µA µA µA VCC0.2 1.9 1.7 2.4 2 2 0.2 0.4 0.55 0.55 0.6 0.8 ±5 µA V V MIN TYP1 MAX 1.2 V VCC+1.2 UNIT
VO = VCC or GND VI = VCC or GND, IO = 0 One input at VCC 0.6 V, Other inputs at VCC or GND
NOTES: 1. All typical values are at VCC = 3.3 V, Tamb = 25°C. 2. This is the bus-hold maximum dynamic current. It is the minimum overdrive current required to switch the input from one state to another.
2001 Sep 07
5
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