M1A3P250-QN132YES View Datasheet(PDF) - Microsemi Corporation

Part Name

Description

Manufacturer

M1A3P250-QN132YES

(A3Pxxx) ProASIC3 Flash Family FPGAs with Optional Soft ARM Support

Microsemi Corporation 

ProASIC3 Flash Family FPGAs

Table 2-30 • I/O Output Buffer Maximum Resistances1

Applicable to Standard I/O Banks

Standard

Drive Strength

RPUL(L-)D2OWN

RP(UL)L3-UP

3.3 V LVTTL / 3.3 V LVCMOS

2 mA

100

300

4 mA

100

300

6 mA

50

150

3.3 V LVCMOS Wide Range4

8 mA

100 µA

50

Same as regular

3.3 V LVCMOS

150

Same as regular

3.3 V LVCMOS

2.5 V LVCMOS

2 mA

100

200

4 mA

100

200

6 mA

50

100

8 mA

50

100

1.8 V LVCMOS

2 mA

200

225

4 mA

100

112

1.5 V LVCMOS

2 mA

200

224

Notes:

1. These maximum values are provided for informational reasons only. Minimum output buffer resistance

values depend on VCCI, drive strength selection, temperature, and process. For board design

considerations and detailed output buffer resistances, use the corresponding IBIS models located at

http://www.microsemi.com/soc/download/ibis/default.aspx.

2. R(PULL-DOWN-MAX) = (VOLspec) / IOLspec

3. R(PULL-UP-MAX) = (VCCImax – VOHspec) / IOHspec

4. All LVCMOS 3.3 V software macros support LVCMOS 3.3 V wide range as specified in the JESD-8B

specification.

Table 2-31 • I/O Weak Pull-Up/Pull-Down Resistances

Minimum and Maximum Weak Pull-Up/Pull-Down Resistance Values

R(WEAK

1

PULL-UP)

()

R(WEAK

2

PULL-DOWN)

()

VCCI

Min.

Max.

Min.

Max.

3.3 V

10 k

45 k

10 k

45 k

3.3 V (wide range I/Os)

10 k

45 k

10 k

45 k

2.5 V

11 k

55 k

12 k

74 k

1.8 V

18 k

70 k

17 k

110 k

1.5 V

19 k

90 k

19 k

140 k

Notes:

1. R(WEAK PULL-UP-MAX) = (VCCIMAX – VOHspec) / I(WEAK PULL-UP-MIN)

2. R(WEAK PULL-DOWN-MAX) = (VOLspec) / I(WEAK PULL-DOWN-MIN)

Revision 13

2- 27

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