S29GL01GS10DFIV13 datasheet(70/108 Pages) CYPRESS

70 / 108 page

Document Number: 001-98285 Rev. *R

Page 70 of 108

S29GL01GS/S29GL512S

S29GL256S/S29GL128S

10.4.2

Power Supply Voltages

Operating ranges define those limits between which the functionality of the device is guaranteed.

10.4.3

Power-Up and Power-Down

During power-up or power-down VCC must always be greater than or equal to VIO (VCC  VIO).

The device ignores all inputs until a time delay of tVCS has elapsed after the moment that VCC and VIO both rise above, and stay

above, the minimum VCC and VIO thresholds. During tVCS the device is performing power on reset operations.

During power-down or voltage drops below VCC Lockout maximum (VLKO), the VCC and VIO voltages must drop below VCC Reset

(VRST) minimum for a period of tPD for the part to initialize correctly when VCC and VIO again rise to their operating ranges. See

Figure 10.2 on page 71. If during a voltage drop the VCC stays above VLKO maximum the part will stay initialized and will work

correctly when VCC is again above VCC minimum. If the part locks up from improper initialization, a hardware reset can be used to

initialize the part correctly.

Normal precautions must be taken for supply decoupling to stabilize the VCC and VIO power supplies. Each device in a system

should have the VCC and VIO power supplies decoupled by a suitable capacitor close to the package connections (this capacitor is

generally on the order of 0.1 µF). At no time should VIO be greater then 200 mV above VCC (VCC  VIO –200 mV).

Note:

1. Not 100% tested.

Figure 10.1 Power-up

VCC

2.7 V to 3.6 V

VIO

1.65 V to VCC +200 mV

Table 10.3 Power-Up/Power-Down Voltage and Timing

Symbol

Parameter

Min

Max

Unit

VCC

VCC Power Supply

2.7

3.6

VLKO

VCC level below which re-initialization is required (Note 1)

2.25

2.5

VRST

VCC and VIO Low voltage needed to ensure initialization will occur

(Note 1)

1.0

–

tVCS

VCC and VIO  minimum to first access (Note 1)

300

–

µs

tPD

Duration of VCC  VRST(min) (Note 1)

–

µs

Vcc (m a x)

Vcc (m in )

Po w e r Su p p ly

Vo lta g e

tim e

tVCS

F u ll D e vice A cce ss

Vcc

V IO (m in)

V IO (m a x)

V IO

S29GL01GS10DFIV13 Datasheet(PDF) 70 Page - Cypress Semiconductor

S29GL01GS10DFIV13 Datasheet(HTML) 70 Page - Cypress Semiconductor

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