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UPSD3422EB40U6 데이터시트(PDF) 286 Page - STMicroelectronics |
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UPSD3422EB40U6 데이터시트(HTML) 286 Page - STMicroelectronics |
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286 / 300 page ![]() Obsolete Product(s) - Obsolete Product(s) Obsolete Product(s) - Obsolete Product(s) DC and AC parameters UPSD3422, UPSD3433, UPSD3434, UPSD3454 286/300 Figure 107. ISC timing Table 233. Supervisor reset and LVD Symbol Parameter Conditions Min Typ Max Unit tRST_LO_IN Reset input duration 1(1) 1. 25 µs minimum to abort a Flash memory program or erase cycle in progress. µs tRST_ACTV Generated reset duration fOSC = 40 MHz 10(2) 2. As fOSC decreases, tRST_ACTV increases. Example: tRST_ACTV = 50 ms when fOSC = 8 MHz. ms tRST_FIL Reset input spike filter 1 µs VRST_HYS Reset input hysteresis VCC = 3.3 V 0.1 V VRST_THRESH LVD trip threshold VCC = 3.3 V 2.4 2.6 2.8 V Table 234. ISC timing (5 V PSD module) Symbol Parameter Conditions Min Max Unit tISCCF Clock (TCK, PC1) frequency (except for PLD) (1) 20 MHz tISCCH Clock (TCK, PC1) high time (except for PLD) 23 ns tISCCL Clock (TCK, PC1) low time (except for PLD) 23 ns tISCCFP Clock (TCK, PC1) frequency (PLD only) (2) 4MHz tISCCHP Clock (TCK, PC1) high time (PLD only) 90 ns tISCCLP Clock (TCK, PC1) low time (PLD only) 90 ns tISCPSU ISC port setup time 7 ns tISCPH ISC port hold up time 5 ns ISCCH TCK TDI/TMS ISC OUTPUTS/TDO ISC OUTPUTS/TDO t ISCCL t ISCPH t ISCPSU t ISCPVZ t ISCPZV t ISCPCO t AI02865 Obsolete Product(s) - Obsolete Product(s) |
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