STA1295 datasheet(77/109 Pages) STMICROELECTRONICS

77 / 109 page

DS12586 Rev 5

77/109

STA1295, STA1275

Electrical characteristics

106

Ψj-c

Thermal resistance junction to case(1)

—1

°C/W

Θj-a

Thermal resistance junction to ambient(2)

—

18.5

°C/W

Ψj-b

Thermal resistance junction to board(2)

—11

°C/W

Ψj-c

Thermal resistance junction to case(2)

—1

°C/W

Θj-a

Thermal resistance junction to ambient(3)

—

17.2

°C/W

Ψj-b

Thermal resistance junction to board(3)

—

10.3

°C/W

Ψj-c

Thermal resistance junction to case(3)

—1

°C/W

1. LFBGA 19x19 package, thermal simulation with 2s2p board as per Jedec standard JESD51-7;

Tamb = 85 °C.

2. LFBGA 19x19 package, thermal simulation with 4 layer application board; Tamb = 85 °C.

3. LFBGA 19x19 package, thermal simulation with 6 layer application board; Tamb = 85 °C.

Table 34. Frequency limits

Symbol

Parameter

Test

condition

Limit values

Notes

Unit

Min.

Typ.

Max.

FCLK-A7(1)

Operating frequency

Cortex® A7 CP.

ECO version (-E).

VDD = 1.14 V

TC = 85 °C

—600(2)

650

—

MHz

FCLK-M3(1)

Operating Cortex-M3 CPU

frequency

——

208

—

FVIP(1)

P Operating frequency for VIP

—

240

—

FSSP(1)

Operating frequency for SSP

in master mode

——

—

FSAI(1)

P Operating frequency for SAI

—

FSQI(1)

P Operating frequency for SQI

—

125

—

FDDR3(1)

Operating frequency for

DDR3L

——

660

—

FLCD(1)

Operating frequency for

single display LCD

——

156

Edge

shift

mode

FLCD(1)

Operating frequency for dual

display LCD

——

—

FSDMMC0(1) P

Operating frequency for

SDMMC0

—96(3) 104(3)

1.8 V

SDIO

mode

FSDMMC1(1) P

Operating frequency for

SDMMC1/2

—48(3)

52(3)

—

Table 33. Thermal characteristics (continued)

Symbol

Parameter

Limit values

Unit

Min

Max

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