AT43301-SU Atmel, AT43301-SU Datasheet
AT43301-SU
Specifications of AT43301-SU
Available stocks
Related parts for AT43301-SU
AT43301-SU Summary of contents
Page 1
... SOIC and a 32-lead LQFP packages. The 32-lead ver- sion of the AT43301, the AT43301-AC, has a 48 MHz clock input. The AT43301 supports the 12 Mb/s full speed as well as 1.5 Mb/s slow speed USB transactions. To reduce EMI, the AT43301’s oscillator frequency is 6 MHz even though some internal circuitry operates at 48 MHz ...
Page 2
... The AT43301 consists of a Serial Interface Engine, a Hub Repeater, and a Hub Controller. The Serial Interface Engine’s tasks are: • Manage the USB communication protocol • USB signaling detection/generation • Clock/data separation, data encoding/decoding, CRC generation/checking • Data serialization/deserialization The Hub Repeater is responsible for: • ...
Page 3
... Power supply, ground Table 1-1. Pin Number 1137J–USB–01/06 24-lead SOIC AT43301-SC Pin Assignment Signal VCC VSS CEXT1 OSC1 OSC2 LFT STAT PWR OVC LPSTAT TEST SELF/BUS VSS DM0 DP0 DM1 DP1 DM2 DP2 DM3 DP3 DM4 DP4 NC AT43301 Type ...
Page 4
... Table 1-2. Pin Number AT43301 4 32-lead AT43301-AC Pin Assignment Signal NC DM4 DP4 48 VCC VSS CEXT NC VSS OSC1 OSC2 LFT STAT PWR NC OVC LPSTAT TEST SELF/BUS NC VSS DM0 DP0 NC NC DM1 DP1 DM2 DP2 DM3 DP3 NC Type – – – – – ...
Page 5
... LPSTAT I local power supply. This pin should be connected to the local power supply through a 100 kΩ resistor. 48 MHz Select, 32-lead LQFP only. This pin sets the clock input to the AT43301-AC tied low MHz 48 I clock must be input to OSC1 tied high (to CEXT1 through a 47 kΩ resistor MHz crystal must be connected between OSC1 and OSC2 MHz clock input to OSC1 ...
Page 6
... DM) is pulled high port is enumerated as low speed, its output buffers operate at a slew rate of 75-300 ns, and the AT43301 will not propagate any traffic to that port unless it is prefaced with a preamble PID. Low speed data following the preamble PID is propa- gated to both low- and full-speed devices ...
Page 7
... Power Management A hub is allowed to draw up to 500 mA of power from the host or upstream hub. The AT43301’s itself and its external circuitry typically consume about 24 mA. Therefore, in the bus-powered mode, 100 mA is available for each of the hub’s downstream devices. In the self-powered mode, an external power supply is required which must be capable of supplying 500 mA per port ...
Page 8
... Figure 2-1 and Figure 2-2 show examples of the power supply and power man- U1 GND VCC AT43301 PWR OVC U2 CTL FLG IN OUT SWITCH U1 GND VCC AT43301 PWR OVC U2 CTL FLG IN OUT SWITCH PORT_POWER GND PORT_POWER GND TO DOWNSTREAM PORT_POWER DEVICES GND PORT_POWER GND ...
Page 9
... Endpoint 0 Endpoint 0 is the AT43301’s default endpoint used for enumeration of the hub and exchange of configuration information and requests between the host and the AT43301. Endpoint 0 supports control transfers. The Hub Controller supports the following descriptors through Endpoint 0: Device Descriptor, Configuration Descriptor, Interface Descriptor, Endpoint Descriptor, and Hub Descriptor ...
Page 10
... Hub Controller will transfer the whole byte. The Hub Controller will continue to report a status change when polled until that particular change has been removed by a ClearPortFeature request from the Host. No status change will be reported by Endpoint 1 until the AT43301 has been enumerated and configured by the host. ...
Page 11
... V ceramic capacitor soldered as close as possible to the VCC and VSS package pins are recommended. The AT43301 can also operate directly off a 3.3V power supply. In this case, leave the VCC pin floating and connect the 3.3V power to CEXT1. 1137J–USB–01/06 External Oscillator and PLL Circuit Y1 6 ...
Page 12
... DI V Differential Common Mode Range CM V Static Output Low OL1 V Static Output High OH1 V Output Signal Crossover CRS C Input Capacitance IN AT43301 12 Condition Min -0.3V -0.3 -40 -65 = 0°C to 85° 4.4V to 5.25V, unless otherwise noted Condition Condition DPx and DMx R of 1.5 kΩ to 3.6V ...
Page 13
... With external 22Ω series resistor. 1137J–USB–01/06 Condition MHz 1 MHz Condition 6 MHz, fundamental V = 3.3V, 6 MHz crystal, 100Ω equiv series resistor CC Condition (1) Steady state drive AT43301 Min Max Unit 0 0.3V V CEXT 0.7V V CEXT 0.5 V CEXT Min Max Unit 0.47 1.20 ...
Page 14
... To Next Transition HDJ1 t For Paired Transitions HDJ2 t Data Bit Width Distortion after SOP FSOP t Hub EOP Delay Relative to t FEOPD t Hub EOP Output Width Skew FHESK AT43301 14 Condition Average bit rate (1) No clock adjustment (1) With clock adjustment Condition C C Condition HDD Min 11 ...
Page 15
... Time to Detect a Long K from Upstream URLK t Time to Detect a Long SEO from Upstream URLSEO t Duration of repeating SEO Upstream URPSEO 1137J–USB–01/06 Condition HDD Condition Only for a SetPortFeature (PORT_RESET) request AT43301 Min Max Unit 300.0 ns -45.0 45.0 ns -15.0 15.0 ns -45.0 45.0 ns -45.0 45 ...
Page 16
... Timing Waveforms Figure 4-1. Figure 4-2. Figure 4-3. Figure 4-4. AT43301 16 Data Signal Rise and Fall Time RISE TIME V 90% CRS 10% DIFFERENTIAL DATA LINES t R Full-speed Load R TxD+ R TxD 50pF L Low-speed Downstream Port Load R S TxD TxD 200pF to 600pF L Differential Data Jitter ...
Page 17
... DATA LINES DIFF. DATA-to- SE0 SKEW N*T +T PERIOD DEOP Receiver Jitter Tolerance T PERIOD DIFFERENTIAL DATA LINES CONSECUTIVE TRANSITIONS N*T CROSSOVER POINT EXTENDED SOURCE EOP WIDTH: T RECEIVER EOP WIDTH JR1 JR2 +T PERIOD JR1 CONSECUTIVE TRANSITIONS N*T +T PERIOD JR1 AT43301 FEOPT T LEOPT FEOPR, T LEOPR 17 ...
Page 18
... T (NEXTJ (SOP) SOP HDDX HDDX Low-speed timings are determined in the same way for LHDD LDHJ1 LDJH2 LUHJ1 LUJH2 AT43301 18 DOWNSTREAM CROSSOVER UPSTREAM POINT HDD1 B. UPSTREAM HUB DELAY WITHOUT CABLE CROSSOVER DOWNSTREAM POINT PORT V SS UPSTREAM HUB DELAY PORT OR END UPSTREAM ...
Page 19
... EOP+ POINT EXTENDED B. DOWNSTREAM EOP DELAY WITHOUT CABLE DOWNSTREAM PORT V SS UPSTREAM PORT OR END T EOP- OF CABLE UPSTREAM EOP DELAY WITH OR WITHOUT CABLE CROSSOVER PORT EOP- EOP+ PORT V SS CROSSOVER POINT EXTENDED CROSSOVER T EOP+ POINT EXTENDED AT43301 POINT EXTENDED CROSSOVER POINT EXTENDED 19 ...
Page 20
... Schematic Diagrams The following pages show schematic diagrams of an AT43301 based bus-powered hub and self- powered hub. Figure 5-1. Bus-powered Hub AT43301 VSS VSS OVC 9 PWR 8 OSC2 SELF/BUS 12 STAT 7 OSC1 1137J–USB–01/06 ...
Page 21
... Figure 5-2. Bus-powered Hub 1137J–USB–01/ AT43301 ...
Page 22
... Figure 5-3. Self-powered Hub AT43301 22 OVC 9 PWR 8 SELF/BUS 12 STAT VSS 13 VSS 2 OSC2 5 OSC1 4 1137J–USB–01/06 ...
Page 23
... Figure 5-4. Self-powered Hub 1137J–USB–01/ AT43301 ...
Page 24
... AT43301 Standard Package Options Ordering Code AT43301-SC AT43301-AC 6.2 AT43301 Green Package Options (Pb/Halide-free/RoHS Compliant) Ordering Code AT43301-AU AT43301-SU 24S 24-lead (0.300 in. body) Plastic Gull Wing Small Outline Package (SOIC) 32AA 32-lead, Low-profile (1.4 mm) Plastic Quad Flat Package (LQFP) AT43301 24 Package 24S – ...
Page 25
... A1 0.05 – A2 1.35 1.40 D 8.75 9.00 D1 6.90 7.00 E 8.75 9.00 E1 6.90 7.00 B 0.30 – C 0.09 – L 0.45 – e 0.80 TYP DRAWING NO. AT43301 MAX NOTE 1.60 0.15 1.45 9.25 7.10 Note 2 9.25 7.10 Note 2 0.45 0.20 0.75 10/5/2001 REV. 32AA B 25 ...
Page 26
... SOIC PIN 1 ID PIN 1 E 0º ~ 8º 2325 Orchard Parkway San Jose, CA 95131 R AT43301 TITLE 24S, 24-lead (0.300" body) Plastic Gull Wing Small Outline (SOIC) COMMON DIMENSIONS (Unit of Measure = mm) MIN MAX SYMBOL NOM NOTE A – – 2.65 A1 0.10 – ...
Page 27
... Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY WARRANTY RELATING TO ITS PRODUCTS INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT ...