Datasheet > 80C51X2

80C51X2

更新时间： 2022-11-28 23:28:31

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
62页	400K
描述
80C51 8-bit microcontroller family 4K/8K/16K/32K ROM/OTP 128B/256B RAM low voltage 2.7 to 5.5 V, low power, high speed 30/33 MHz

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80C51X2 数据手册

Philips Semiconductors

Product data

80C51 8-bit microcontroller family

4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V),

low power, high speed (30/33 MHz)

P80C3xX2; P80C5xX2;

P87C5xX2

80C58X2 ROM CODE SUBMISSION

When submitting a ROM code for the 80C58X2, the following must be specified:

1. 32 kbyte user ROM data

2. 64 byte ROM encryption key

3. ROM security bits.

ADDRESS

CONTENT

DATA

BIT(S)

7:0

COMMENT

0000H to 7FFFH

8000H to 803FH

User ROM Data

KEY

7:0

ROM Encryption Key

FFH = no encryption

8040H

SEC

ROM Security Bit 1

0 = enable security

1 = disable security

ROM Security Bit 2

0 = enable security

1 = disable security

Security Bit 1: When programmed, this bit has two effects on masked ROM parts:

1. External MOVC is disabled, and

2. EA is latched on Reset.

Security Bit 2: When programmed, this bit inhibits Verify User ROM.

NOTE: Security Bit 2 cannot be enabled unless Security Bit 1 is enabled.

If the ROM Code file does not include the options, the following information must be included with the ROM code.

For each of the following, check the appropriate box, and send to Philips along with the code:

Security Bit #1:

Security Bit #2:

Encryption:

V Enabled

V No

V Disabled

V Yes

If Yes, must send key file.

2003 Jan 24

1...53 54 555657 58 59...62

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