st2149 STMicroelectronics, st2149 Datasheet
st2149
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st2149 Summary of contents
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... supply CC Description The ST2149 is a 4-bit dual supply level translator which provides the level shifting capability to allow data transfer in a multi-voltage system. Externally applied voltages either side of the device. Its architecture allows bidirectional level translation without a control pin. The ST2149 accepts V V from 1 ...
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... I/O VCC4 I/O VCC3 GND I/O VCC2 I/O VCC1 I/O VL1 Doc ID 15949 Rev 1 ST2149 Name and function Data input/output Output enable Data input/output Data input/output No connection Supply voltage Supply voltage No connection Data input/output Data input/output Ground Data input/output Data input/output Supply voltage Supply voltage ...
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... ST2149 2 Logic diagram Figure 2. Logic block diagram I/O VL1 I/O VL2 I/O VL3 I/O VL4 Doc ID 15949 Rev 1 Logic diagram V CC I/O VCC1 I/O VCC2 I/O VCC3 I/O VCC4 GND 3/19 ...
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... Logic diagram 2.1 Device block diagrams Figure 3. ST2149 block diagram OE I/O L ST2149 * ST2149 has 4 channels. For simplicity, the above diag ram shows only 1 chann el. * When OE is LOW, all I/Os are in High-Impedance mode. Figure 4. Application block diagram V L 0.1 μF system controller 4/19 4 kΩ kΩ ...
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... ST2149 3 Supplementary notes 3.1 Driver requirement For proper operation, the driver from each side of the device must have capability to source and sink a minimum current. The device architecture requires the driver to source/sink maximum current of (V 3.2 Load driving capability To support the architecture that allows level translation without direction pin, the one-shot transistor is turned ON only during state transition at the output side. After the one-shot transistor is turned OFF, only the 4kΩ ...
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... Value -0.3 to 4.6 -0.3 to 6.5 -0.3 to 6 -20 ±25 ±258 40 500 -65 to 150 300 ±2 Min. Typ. Max. 1.65 – 3.6 1.65 – 5.5 0 – 3.6 0 – – -40 – – 1 ST2149 Unit ° C ° Unit ° C ns/V ...
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... ST2149 5 Electrical characteristics Over recommended operating conditions unless otherwise noted. All typical values are °C. A Table 6. DC characteristics Symbol Parameter V L 1.65 1.8 High level V input voltage 2.5 IHL (I 3.0 3.6 1.65 1.8 Low level V input voltage 2.5 ILL (I 3.0 3.6 High level V input voltage 1.65 to 3.6 IHC (I/O ) VCC Low level V input voltage 1 ...
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... V - 0.4 – L – 0.4 – 0 – – – 0.4 – 0.4 – 0.4 – 0.1 – 1 – 0.1 – 1 – 0.1 – 1 ST2149 Unit µA µA µA ...
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... ST2149 Table 6. DC characteristics (continued) Symbol Parameter V L Partial power I 1.65 to 3.6 OFF down current Quiescent I supply current 1.65 to 3.6 1.65 to 5.5 QVCC V CC Quiescent 1.65 to 3.6 1.65 to 5.5 I supply current QVL V 1.65 to 3.6 L High impedance I quiescent 1.65 to 3.6 1.65 to 5.5 Z-VCC supply current V CC High 1.65 to 3.6 1.65 to 5.5 impedance I quiescent Z-VL supply current 1. ...
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... Doc ID 15949 Rev 3.0 – 4.5 – 3.6 V 5.5 V Min Max Min Max – 2.4 – 1.4 – 1.3 – 1.2 – 2.6 – 2.6 – 1.4 – 1.3 – 5.0 – 4.4 – 3.6 – 3.4 – 4.1 – 4.4 – 4.0 – 3.6 – 27 – 27 – 145 – 145 – 84 – 86 – ST2149 Unit Mbps ...
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... ST2149 Table 8. AC characteristics - test conditions: V Symbol Parameter t Rise time I/O RVCC VCC t Fall time I/O FVCC VCC t Rise time I/O RVL VL t Fall time I/O FVL VL Propagation delay time t I/O to I/O I/OVL-VCC VL-LH VCC-LH I/O to I/O VL-HL VCC-HL Propagation delay time t I/O to I/O I/OVCC-VL VCC-LH VL-LH I/O to I/O VCC-HL VL- Output enable time ...
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... Ω GND Driving I/O VCC ≤ 1.65 V ≤ V ≤ V 3.3 V ≤ ≤ 2 50 50 0.15V – 0.15V ST2149 OPEN GND AM04080V1 CC ≤ V ≤ 5 0.3V – 0.3V ...
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... ST2149 Figure 6. Waveform - propagation delay ( MHz, 50% duty cycle) Figure 7. Waveform - output enable and disable time ( MHz, 50% duty cycle) Doc ID 15949 Rev 1 Test circuit 13/19 ...
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... In order to meet environmental requirements, ST offers these devices in different grades of ® ECOPACK packages, depending on their level of environmental compliance. ECOPACK specifications, grade definitions and product status are available at: www.st.com. ® ECOPACK trademark. Figure 8. Package outline for QFN16 (2.6 x 1.8 x 0.55 mm) - 0.40 mm pitch 14/19 BOTTOM VIEW Doc ID 15949 Rev 1 ST2149 ® QFN16L ...
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... ST2149 Table 12. Mechanical data for QFN16 (2.6 x 1.8 x 0.55 mm) - 0.40 mm pitch Symbol Figure 9. Footprint recommendation for QFN16 (2.6 x 1.8 x 0.55 mm) - 0.40 mm pitch Millimeters Typ Min 0.55 0.45 0.02 0 0.20 0.15 2.60 2.50 1.80 1.70 0.40 – 0.40 0.35 Doc ID 15949 Rev 1 Package mechanical data Max 0.60 0.05 0.25 2.70 1.90 – 0.45 7874 15/19 ...
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... Package mechanical data Figure 10. Carrier tape for QFN16 (2.6 x 1.8 x 0.55 mm) - 0.40 mm pitch 16/19 Doc ID 15949 Rev 1 ST2149 785978-J ...
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... ST2149 Figure 11. Reel information for QFN16 (2.6 x 1.8 x 0.55 mm) - 0.40 mm pitch Doc ID 15949 Rev 1 Package mechanical data 7875978 17/19 ...
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... Revision history 8 Revision history Table 13. Document revision history Date 07-Sep-2009 18/19 Revision 1 Initial release. Doc ID 15949 Rev 1 ST2149 Changes ...
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... ST2149 Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. ...