USB2512B datasheet(52/57 Pages) MICROCHIP

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USB251xB/xBi

DS00001692C-page 52

 2010 - 2015 Microchip Technology Inc.

APPENDIX C:

DATA SHEET REVISION HISTORY

TABLE C-1:

REVISION HISTORY

Revision Level & Date

Section/Figure/Entry

Correction

DS00001692C

(10-20-15)

Product Identification System

PIS ordering code information for preferred

package corrected to align with current Microchip

standard practices.

Section 8.0, "Package Marking

Information"

Top marking diagrams corrected to be consistent

with internal specifications and current physical

part markings.

DS00001692B

(08-12-15)

All

Added new 36-SQFN package option information

(drawings, ordering codes, top markings, etc.)

Cover, Product Identification

System

Updated document with new ordering section.

Removed previous ordering section from cover.

Section 8.0, "Package Marking

Information"

Added new package marking chapter.

REV A

REV A replaces previous SMSC version Rev. 2.4 (11-08-13).

Document is Microchip branded, mention of SMSC is removed.

Order numbers modified adding “G” or “C” as last character to suffix.

The following note added to Package Outline chapter:

“For the most current package drawings, see the Microchip Packaging Specification

at http://www.microchip.com/packaging.”

Rev. 2.4 (11-08-13)

Section 5.2.1, "I2C Slave

Address"

Corrected slave address to “1010000b”.

Figure 3-1, Figure 3-2,

Figure 3-3, Table 3-1

Corrected pin 36 name (VDDA33).

Section 5.5.1.1, "RESET_N for

Strapping Option

Configuration"

Updated timing diagram and values. Changed t6,

t7, t8 name and added new t9. Updated t5 and 78

values.

Section 5.5.1.2, "RESET_N for

EEPROM Configuration"

Updated timing diagram and values. Changed t7,

t8, and t9 name and added new t10. Updated t5,

t6, and t9 values.

Section 5.5.1.3, "RESET_N for

SMBus Slave Configuration"

Updated timing diagram and values. Changed t7,

t8, and t9 name and added new t10. Updated t5,

t6, and t9 values. Removed t5 “bus” and “self”

distinction.

Note 6-2

Added note regarding 3.3 V supply rise time.

Rev. 2.3 (06-11-13)

Table 3-1, “USB251xB/xBi Pin

List (Alphabetical),” on

page 10

Corrected errant description “Server Message

Block” to “System Management Bus”.

Section 7.1,

"Oscillator/Crystal," on

page 44 and FIGURE 7-1:

Typical Crystal Circuit on

page 44

Updated figure to remove external 1 M



requirement. Added note indicating the device

includes and internal1 M

 resistor between the

XTALIN and XTALOUT pins.

FIGURE 3-3: USB2514B Pin

Diagram on page 9

Corrected typo on pin 6.

FIGURE 3-1: USB2512B Pin

Diagram on page 7 & Table 3-

1, “USB251xB/xBi Pin List

(Alphabetical),” on page 10

Added alternate port disable functions to pins 1-4

of the USB2512B.

Rev. 2.2 (02-17-12)

Cover

Updated clock bullet to remove reference to 48MHz

clock support.

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