AS3956 datasheet(67/109 Pages) AMSCO

67 / 109 page

ams Datasheet

Page 67

[v1-10] 2018-Apr-27

Document Feedback

AS3956 − Detailed Description

SPI Timing

Figure 65:

SPI Timing

Note(s):

1. TSCLK=TSCLKL+TSCLKH, during EEPROM read the SCLK period has to be increased to 1μs (this limitation is imposed by EEPROM read

access time)

2. TNCSL = 300μs min in Power mode 0.

Symbol

Parameter

Min

Typ

Max

Unit

Note

General Timing (VP_IO= 3.3V, Temperature 25°C)

TSCLK

SCLK period

200

10000

See note (1)

TSCLKL

SCLK low

TSCLKH

SCLK high

Tgs

Glitch suppression on

SCLK input

TSSH

SPI reset (/SS high)

TNCSL

/SS falling to SCLK rising

25(2)

First SCLK pulse

TNCSH

SCLK falling to /SS rising

Last SCLK pulse

TDIS

Data in setup time

TDIH

Data in hold time

Read Timing (VP_IO= 3.3V, Temperature 25°C, Cload ≤ 50pF)

TDOD

Data out delay

TDOHZ

Data out to high

impedance delay

EEPROM Write Timing (VP_IO= 3.3V, Temperature 25°C)

TEWS

EEPROM write time via SPI

8.3

9.5

/SS rising edge to

IRQ I_io_eewr

AS3956 Datasheet(PDF) 67 Page - ams AG

AS3956 Datasheet(HTML) 67 Page - ams AG

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL