Datasheet > ISD2575T

ISD2575T

更新时间： 2024-02-11 12:48:19

品牌	Logo	应用领域
华邦 - WINBOND		可编程只读存储器电动程控只读存储器电可擦编程只读存储器按钮和信息提示光电二极管商用集成电路
页数	文件大小	规格书
42页	372K
描述
Consumer IC

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数据手册

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ISD2575T 技术参数

生命周期：	Obsolete	包装说明：	,
Reach Compliance Code：	unknown	风险等级：	5.82
Is Samacsys：	N	Base Number Matches：	1

ISD2575T 数据手册

ISD2560/75/90/120

6. PIN DESCRIPTION

PIN NO.

PIN NAME

FUNCTION

SOIC/ TSOP

PDIP

Ax/Mx

1-10/

1-7

8-17/

8-14

Address/Mode Inputs: The Address/Mode Inputs have two

functions depending on the level of the two Most Significant Bits

(MSB) of the address pins (A8 and A9).

If either or both of the two MSBs are LOW, the inputs are all

interpreted as address bits and are used as the start address for

the current record or playback cycle. The address pins are inputs

only and do not output any internal address information during the

operation. Address inputs are latched by the falling edge of CE.

If both MSBs are HIGH, the Address/Mode inputs are interpreted as

Mode bits according to the Operational Mode table on page 12.

There are six operational modes (M0…M6) available as indicated in

the table. It is possible to use multiple operational modes

simultaneously. Operational Modes are sampled on each falling

edge of CE, and thus Operational Modes and direct addressing

are mutually exclusive.

AUX IN

The Auxiliary Input is multiplexed through to the

Auxiliary Input:

output amplifier and speaker output pins when CE is HIGH, P/R

is HIGH, and playback is currently not active or if the device is in

playback overflow. When cascading multiple ISD2500 devices, the

AUX IN pin is used to connect a playback signal from a following

device to the previous output speaker drivers. For noise

considerations, it is suggested that the auxiliary input not be driven

when the storage array is active.

V_SSA, V_SSD

SP+/SP-

13, 12 20, 19

Ground: The ISD2500 series of devices utilizes separate analog

and digital ground busses. These pins should be connected

separately through a low-impedance path to power supply ground.

14/15

21/22

: All devices in the ISD2500 series include an on-

Speaker Outputs

chip differential speaker driver, capable of driving 50 mW into 16 Ω

from AUX IN (12.2mW from memory).

[1]

The speaker outputs are held at V_SSAlevels during record and

power down. It is therefore not possible to parallel speaker outputs

of multiple ISD2500 devices or the outputs of other speaker drivers.

^[2]A single-end output may be used (including a coupling capacitor

between the SP pin and the speaker). These outputs may be used

individually with the output signal taken from either pin. However,

the use of single-end output results in a 1 to 4 reduction in its

output power.

[1]

[2]

Connection of speaker outputs in parallel may cause damage to the device.

Never ground or drive an unused speaker output.

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