- 您现在的位置：买卖IC网 > PDF目录224124 > M27C256B-15XB6 (STMICROELECTRONICS) 32K X 8 OTPROM, 150 ns, PDIP28 PDF资料下载
参数资料
| 型号： | M27C256B-15XB6 |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | PROM |
| 英文描述： | 32K X 8 OTPROM, 150 ns, PDIP28 |
| 封装： | 0.600 INCH, LEAD FREE, PLASTIC, DIP-28 |
| 文件页数： | 2/24页 |
| 文件大小： | 205K |
| 代理商： | M27C256B-15XB6 |
Device operation
M27C256B
Figure 4.
Programming flowchart
2.7
Program inhibit
Programming of multiple M27C256Bs in parallel with different data is also easily
accomplished. Except for E, all like inputs including G of the parallel M27C256B may be
common. A TTL low level pulse applied to a M27C256B's E input, with VPP at 12.75V, will
program that M27C256B. A high level E input inhibits the other M27C256Bs from being
programmed.
2.8
Program Verify
A verify (read) should be performed on the programmed bits to determine that they were
correctly programmed. The verify is accomplished with G at VIL, E at VIH, VPP at 12.75V and
VCC at 6.25V.
2.9
Electronic signature
The Electronic Signature (ES) mode allows the reading out of a binary code from an
EPROM that will identify its manufacturer and type. This mode is intended for use by
programming equipment to automatically match the device to be programmed with its
corresponding programming algorithm. The ES mode is functional in the 25°C ± 5°C
ambient temperature range that is required when programming the M27C256B. To activate
the ES mode, the programming equipment must force 11.5V to 12.5V on address line A9 of
the M27C256B, with VCC = VPP = 5V. Two identifier bytes may then be sequenced from the
device outputs by toggling address line A0 from VIL to VIH. All other address lines must be
held at VIL during Electronic Signature mode. Byte 0 (A0 = VIL) represents the manufacturer
code and byte 1 (A0 = VIH) the device identifier code. For the STMicroelectronics
M27C256B, these two identifier bytes are given in Table 3 and can be read-out on outputs
Q7 to Q0.
AI00760B
n = 0
Last
Addr
VERIFY
E = 100
s Pulse
++n
= 25
++ Addr
VCC = 6.25V, VPP = 12.75V
FAIL
CHECK ALL BYTES
1st: VCC = 6V
2nd: VCC = 4.2V
YES
NO
YES
NO
YES
NO
相关PDF资料 |
PDF描述 |
|---|---|
| M27C512-45XN1 | 512 Kbit (64K x8) UV EPROM and OTP EPROM |
| M27C512-60F1 | 512 Kbit (64K x8) UV EPROM and OTP EPROM |
| M27C512-70XC1 | 512 Kbit (64K x8) UV EPROM and OTP EPROM |
| M28754/14-01 | 20 CONTACT(S), MALE, RIGHT ANGLE TWO PART BOARD CONNECTOR, SOLDER |
| M28754/8-01 | 40 CONTACT(S), MALE, RIGHT ANGLE TWO PART BOARD CONNECTOR, SOLDER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M27C256B-15XF1 | 制造商:STMicroelectronics 功能描述:EPROM, 32K x 8, 28 Pin, Ceramic, DIP |
| M27C256B-20B1 | 功能描述:可擦除可编程ROM RO 511-M27C256B-15B DIP-28 32KX8 200NS RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92 |
| M27C256B-20C1 | 功能描述:可擦除可编程ROM RO 511-M27C256B-15C PLCC-32 32KX8 200NS RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92 |
| M27C256B-20F1 | 功能描述:可擦除可编程ROM RO 511-M27C256B-15F DIP-28 32KX8 200NS RoHS:否 制造商:Maxim Integrated 类型: 存储容量:1024 bit 组织:1 K x 1 接口类型: 工作电流:5 uA 编程电压: 工作电源电压:2.8 V to 6 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:TO-92 |
| M27C256B20FI | 制造商:ST MICRO 功能描述:* |
发布紧急采购，3分钟左右您将得到回复。