ST2149QTR STMicroelectronics, ST2149QTR Datasheet
ST2149QTR
Specifications of ST2149QTR
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ST2149QTR Summary of contents
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... Small package and footprint QFN16 (2.6 x 1.8 mm) package Applications ■ Low voltage system level translation ■ Mobile phone and other mobile devices Table 1. Device summary Order code ST2149QTR September 2009 4-bit dual supply level translator 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 ...
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Pin settings 1 Pin settings 1.1 Pin connection Figure 1. Pin connection (top through view) 1.2 Pin description Table 2. Pin description Pin number ...
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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 ...
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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 ...
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Maximum ratings 4 Maximum ratings Stressing the device above the rating listed device. These are stress ratings only and operation of the device at these or any other conditions above those indicated in the operating sections of this specification is ...
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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/O ) ...
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Electrical characteristics Table 6. DC characteristics (continued) Symbol Parameter V L 1.65 1.8 High level V input voltage 2.5 IH-OE (OE) 3.0 3.6 1.65 1.8 Low level V input voltage 2.5 IL-OE (OE) 3.0 3.6 High level V output voltage ...
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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 ...
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Electrical characteristics 5.1 AC characteristics Load pF; driver t L Table 7. 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 ...
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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 ...
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Test circuit 6 Test circuit Figure 5. Test circuit Pulse generator Table 10. Test circuit switches Test t t PLH, PHL PZL, PLZ t t PZH, PHZ Table 11. Waveform symbol value Symbol ...
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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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Package mechanical data 7 Package mechanical data 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 ...
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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 ...
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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. ...