F75909 . F75909 SMBus Level Shifter Release Date: Dec, 2011 Version: V0.11P Dec, 2011 V0.11P F75909 F75909 Datasheet Revision History Version Data Brief Date 2011/10 Page - V0.10P 2011/11 - V0.11P V0.12P 2011/12 2011/12 -- Revision History Data Brief Made Clarification and Correction Add Application Circuit Add Electrical Characteristics Update Block Diagram / Application Circuit Please note that all data and specifications are subject to change without notice. All the trade marks of products and companies mentioned in this data sheet belong to their respective owners. LIFE SUPPORT APPLICATIONS These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Fintek for any damages resulting from such improper use or sales. Dec, 2011 V0.11P F75909 Table of Content 1 General Description ............................................................................... 1 2 Feature List ...................................................................................... 1 3 Block Diagram .................................................................................... 2 4 Pin Configuration ................................................................................. 2 5 Pin Description ................................................................................... 3 7 Electrical Characteristics ........................................................................... 3 8 Ordering Information .............................................................................. 5 9 Top Marking Specification .......................................................................... 5 10 Package Spec. ................................................................................... 6 11 Application Circuit ................................................................................. 7 Dec, 2011 V0.11P F75909 1 General Description 2 2 The F75909 is a I C-bus/SMBus level shifter that translating signal voltage level of standard I C-bus or SMBus. Port L allows a operating voltage range from 1.0 V to [VCC(H) -1.0 V]. The operating voltage of Port H is range from 3.0 V to 5.5 V. When F75909 is disabled, both port L and port H I/O pins are highimpedance. The bus port H are compliant with SMBus I/O levels, while port L uses a current sensing mechanism to detect the input or output LOW signal which prevents bus lock-up. Port L uses a 1 mA current source for pullpull-down driver. This results in a LOW on the port L accommodating smaller voltage swings. The output pull-down on the port L internal buffer LOW is set for approximately 0.2 V, while the input threshold of the internal buffer is set about 50 mV lower than that of the output voltage LOW. When the port L I/O is driven LOW internally, the LOW is not recognized as a LOW by the input. This prevents a lock-up condition from occurring. The output pull-down on the port H drives a hard LOW and the input level 2 2 is set at 0.3 of SMBus or I C-bus voltage level which enables port H to connect to any other I C-bus devices or buffer. The F75909 is not enabled unless VCC(L) is above 0.8 V and VCC(H) is above 2.5 V. The enable (EN) pin can also be used to turn the drivers on and off under system control. Caution should be observed to only change the state of the EN pin when the bus is idle. 2 Feature List Voltage level shifting from L-Port (1V to Vcc(H) -1.0V) No external pull-up resistors required on Port L Open-drain I/O Lock-up free operation High impedance bus pin when Power-off. 1 Dec, 2011 V0.12P F75909 3 Block Diagram PWR_L Vdd_switch PWR_H PWR_L PWR_H Pulse Generator 4 Vdd_switch Pulse Generator Pin Configuration VCC(H) H1 H2 EN F75909 MSOP-8 VCC(L) L1 L2 GND Pin Configuration of F75909 2 Dec, 2011 V0.12P F75909 5 Pin Description IN - input pin with schmitt trigger. OUT - Open-drain output pin P -Power. 4.1. Pin Description 7 Pin No. Pin Name Type Description 1 VCC (L) P 2 L1 Analog Port L1 (lower voltage side) 3 L2 Analog Port L2 (lower voltage side) 4 GND Ground Ground 5 EN IN 6 H2 Analog Port H1 (I/O signal input Side) 7 H1 Analog Port H2 (I/O signal input Side) 8 VCC (H) P Port L power supply Enable input Port H power supply Electrical Characteristics Limiting Values In accordance with the Absolute Maximum Rating System Symbol Parameter Conditions Vcc(H) Supply voltage port High side Vcc(L) Supply voltage port Low side VI/O Voltage on an input/output pin Port low side, enable pin (EN) Port high side; IO output current Ptot Total power dissipation Tstg Storage temperature Tamb Ambient temperature Operating in free air Min -0.5 -0.5 -0.5 -0.5 Max +5.5 +5.5 +3.6 +5 16 -55 0 145 70 Unit V V V V mA mW ℃ ℃ Static Characteristics GND=0V; Tamb=-40℃ to +85℃; unless otherwise specified. Symbol Parameter Conditions Supplies Vcc(H) Supply voltage port High side Vcc(L) Supply voltage port Low side Icc(L) Supply current port Low side All port low side static High All port low side static Low 3 Min 2.5 1 Typ*1 Max Unit 3.6 Vcc(B) V V mA mA Dec, 2011 V0.12P F75909 Icc(H) Supply current port High side Input and output of port Low side (L1 to L2) VIH High-level input voltage VIL Low-level input voltage IIH Input leakage current IIL Low-level input current ILOH output High leakage current CiO Input/output capacitance Input and output of port High side (H1 to H2) VIH High-level input voltage VIL Low-level input voltage IIH Input leakage current IIL Low-level input current ILOH output High leakage current CiO Input/output capacitance All port High side static High mA Port Low side 0.7 Vcc(L) Vcc(L) V Port Low side VI=Vcc(L) -0.5 0.3 Vcc(L) V uA mA uA pF 1 VO=1.1V 15 5 Port H Port H VI=3.6V VI=0.2V VO=3.6V 0.7 Vcc(H) 5 -0.5 0.3 Vcc(H) 1 1 120 5 V V uA uA uA pF Enable VIH Low-level input voltage VIL High-level input voltage IIH Low-level input current IIL Input leakage current Ci Input capacitance *1 Typical values with Vcc(A)=1.1V, Vcc(B)=3.3V 0.7 Vcc(L) Vcc(H) 0.3 Vcc(L) -0.5 1 1 VI=3.6V or 0V 4 V V uA uA pF Dynamic Characteristics Symbol Parameter Conditions Vcc(A) = 1.1V ; Vcc(B) = 3.3V tPLH Low to High propagation delay Port H to port L tPHL High to Low propagation delay Port H to port L tTLH Low to High output transition time Port L Min Typ Max Unit *1 *1 *1 1.2 4.9 2.3 ns ns ns tTHL High to Low output transition time Port L *1 1.5 ns tPLH tPLH2 Low to High propagation delay Low to High propagation delay 2 *1 *1 4.8 ns ns *1 *1*2 *1 3.8 2.4 3.9 ns 2.7 ns 2.7 ns *1 *1 *1 1 4.4 2 ns ns ns tPHL tTLH tTHL Port L to port H Port L to port H; measured from the 50% of initial Low on port L to 1.5V rising on port H High to Low propagation delay Port L to port H Low to High propagation delay Port H High to Low output transition time Port H tsu Set-up time th Hold time EN High before Start condition En High after Stop condition Vcc(A) = 1.9V ; Vcc(B) = 5.0V tPLH Low to High propagation delay Port H to port L tPHL High to Low propagation delay Port H to port L tTLH Low to High output transition time Port L ns tTHL High to Low output transition time Port L *1 2 ns tPLH Low to High propagation delay *1 2.5 ns Port L to port H 4 Dec, 2011 V0.12P F75909 tPLH2 Low to High propagation delay 2 tPHL tTLH tTHL Port L to port H; measured from the 50% of initial Low on port L to 1.5V rising on port H High to Low propagation delay Port L to port H Low to High propagation delay Port H High to Low output transition time Port H tsu Set-up time *1 *1 *1*2 *1 ns 1.8 2.5 2.7 EN High before Start condition th Hold time En High after Stop condition *1 Load capacitance = 50 pF; load resistance on port B =1.35 kΩ. *2 Value is determined by RC time constant of bus line. 8 ns ns ns Ordering Information Part Number F75909M 9 ns Package Type MSOP-8 Production Flow Commercial, 0C to +70C Top Marking Specification The version identification is shown as the bold red characters. Please refer to below for detail: MSOP-8 st 909MX XXXXX 1 Line: Device Name + IC Version (X) nd 2 Line: Assembly Code (X)+Date code(XXX)+Trace Code(X) : Pin 1 Identifier 5 Dec, 2011 V0.12P F75909 10 Package Spec. MSOP-8 Package 6 Dec, 2011 V0.12P F75909 11 Application Circuit 7 Dec 2011 V0.12P