Datasheet > TDA8002BT/3/C2-T

TDA8002BT/3/C2-T

更新时间： 2024-01-26 08:42:46

品牌	Logo	应用领域
恩智浦 - NXP		光电二极管外围集成电路
页数	文件大小	规格书
28页	131K
描述
IC SPECIALTY MICROPROCESSOR CIRCUIT, PDSO28, Microprocessor IC:Other

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TDA8002BT/3/C2-T 技术参数

生命周期：	Obsolete	包装说明：	SOP,
Reach Compliance Code：	unknown	HTS代码：	8542.31.00.01
风险等级：	5.6	JESD-30 代码：	R-PDSO-G28
长度：	17.9 mm	端子数量：	28
最高工作温度：	85 °C	最低工作温度：	-25 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	SOP
封装形状：	RECTANGULAR	封装形式：	SMALL OUTLINE
认证状态：	Not Qualified	座面最大高度：	2.65 mm
最大供电电压：	6.5 V	最小供电电压：	3 V
标称供电电压：	3.3 V	表面贴装：	YES
技术：	CMOS	温度等级：	OTHER
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	宽度：	7.5 mm
uPs/uCs/外围集成电路类型：	MICROPROCESSOR CIRCUIT	Base Number Matches：	1

TDA8002BT/3/C2-T 数据手册

浏览型号TDA8002BT/3/C2-T的Datasheet PDF文件第10页

Philips Semiconductors

Product speciﬁcation

IC card interface

TDA8002

FUNCTIONAL DESCRIPTION

Power supply

Clock circuitry

The TDA8002 supports both synchronous and

asynchronous cards (I²C-bus memories requiring an

acknowledge signal from the master are not supported).

There are three methods to clock the circuitry:

The supply pins for the chip are V_DDA, V_DDD, AGND,

DGND1 and DGND2. V_DDAand V_DDD(i.e. V_DD) should be

in the range of 3.0 to 6.5 V. All card contacts remain

inactive during power-up or power-down.

• Apply a clock signal to pin STROBE

• Use of an internal RC oscillator

On power-up, the logic is reset by an internal signal.

The sequencer is not activated until V_DDreaches

V_th2+ V_hys2(see Fig.5). When V_DDfalls below V_th2, an

automatic deactivation sequence of the contacts is

performed.

• Use of a quartz oscillator which should be connected

between pins XTAL1 and XTAL2.

When CLKSEL is HIGH, the clock should be applied on the

STROBE pin, and when CLKSEL is LOW, one of the

internal oscillators is used.

Supply voltage supervisor (V_DD

)

When an internal clock is used, the clock output is

available on pin CLKOUT. The RC oscillator is selected by

making CLKDIV1 HIGH and CLKDIV2 LOW. The clock

output to the card is available on pin CLK. The frequency

of the card clock can be the input frequency divided by

2 or 4, STOP LOW or 1.25 MHz, depending on the states

of CLKDIV1 or CLKDIV2 (see Table 1).

This block surveys the V_DDsupply. A defined reset pulse

of 10 ms minimum (t_W) can be retriggered and is delivered

on the ALARM outputs during power-up or power-down of

V_DD(see Fig.5). This signal is also used for eliminating the

spikes on card contacts during power-up or power-down.

When V_DDreaches V_th2+ V_hys2, an internal delay is

started. The ALARM outputs are active until this delay has

expired. When V_DDfalls below V_th2, ALARM is activated

and a deactivation sequence of the contacts is performed.

Do not change CLKSEL during activation. When in

low-power (sleep) mode, the internal oscillator frequency

which is available on pin CLKOUT is lowered to

approximately 16 kHz for power-economy purposes.

For 3 V supply, the supervisor option must be chosen at

3 V. For 5 V supply, both options (3 or 5 V) may be chosen

depending on the application.

handbook, full pagewidth

+ V

hys2

th2

ALARM

MGE734

Fig.5 Alarm as a function of V_DD(pulse width 10 ms).

1997 Nov 04

1...4 5 678 9 10...28

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与TDA8002BT/3/C2-T相关器件

型号	品牌	描述	获取价格	数据表
TDA8002BT/3C1	NXP	IC SPECIALTY MICROPROCESSOR CIRCUIT, PDSO28, Microprocessor IC:Other	获取价格
TDA8002BT/3C1-T	NXP	IC SPECIALTY MICROPROCESSOR CIRCUIT, PDSO28, Microprocessor IC:Other	获取价格
TDA8002BT/5	NXP	IC card interface	获取价格
TDA8002BT/5/C1	NXP	IC SPECIALTY MICROPROCESSOR CIRCUIT, PDSO28, Microprocessor IC:Other	获取价格
TDA8002BT/5/C1-T	NXP	IC SPECIALTY MICROPROCESSOR CIRCUIT, PDSO28, Microprocessor IC:Other	获取价格
TDA8002BT/5/C2	NXP	IC card interface	获取价格

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